List of Category 4 Australian region severe tropical cyclones

Category 4 is the second-highest classification on the Australian tropical cyclone intensity scale which is used to classify tropical cyclones, that have 10-minute sustained winds of at least wind speeds of 86–107 kn. 47 tropical cyclones have peaked Category 4 severe tropical cyclones in the Australian tropical cyclone basin, which is denoted as a part of the Indian and Pacific Oceans to the south of the equator and between 90°E–160°E. The earliest tropical cyclone to be classified as a Category 4 severe tropical cyclone was Gyan which was classified as a Category 4 during 22 December 1981, as it impacted New Caledonia. The latest was Pola as it passed between Fiji and Tonga. This list does include any tropical cyclones that peaked as a Category 5 severe tropical cyclone, while in the Australian region.

Background
The Australian region tropical cyclone basin is located to the south of the Equator between 90°E and 160°E. The basin is officially monitored by the Australian Bureau of Meteorology as well as the Indonesian Agency for Meteorology, Climatology and Geophysics (BMKG), and the Papua New Guinea National Weather Service. The United States Joint Typhoon Warning Center (JTWC) and other national meteorological services such as New Zealand's MetService, Météo-France and the Fiji Meteorological Service, also monitor parts of the basin in an unofficial capacity. Within the basin a Category 4 severe tropical cyclone is defined as a tropical cyclone that has 10-minute mean maximum sustained wind speeds of 86–107 kn on the Australian tropical cyclone intensity scale. A named storm can also be classified as a Category 4 tropical cyclone if it is estimated to have 1-minute mean maximum sustained wind speeds of between 113–136 kn on the Saffir-Simpson hurricane wind scale. This scale is not officially used by any of the warning centres for the region, but tropical cyclones are compared to it by various agencies, including NASA. On both scales a Category 5 tropical cyclone is expected to cause widespread devastation if it significantly impacts land at or near its peak intensity.

1970s
New Caledonia, Queensland || Significant || Unknown ||
 * Kerry || 21–22 January 1973 || 90 kn || 960 hPa || Wesrern Australia || || ||
 * Madge || 8–18 March 1973 || 90 kn || 952 hPa || Northern Territory, Queensland || || ||
 * Pam || 30 January – 8 February 1974 || 105 kn || 925 hPa || Wallis and Futuna, Vanuatu
 * Madge || 8–18 March 1973 || 90 kn || 952 hPa || Northern Territory, Queensland || || ||
 * Pam || 30 January – 8 February 1974 || 105 kn || 925 hPa || Wallis and Futuna, Vanuatu
 * Pam || 30 January – 8 February 1974 || 105 kn || 925 hPa || Wallis and Futuna, Vanuatu
 * Tracy || 21–26 December 1974 || 95 kn || 950 hPa || Northern Territory || ||  ||
 * Vanessa (1976) || January 1976 || 95 kn || 950 hPa || Western Australia || || ||
 * Watorea || || 90 kn || 970 hPa || || || ||
 * Ted || 15–21 December 1976 || 100 kn || 945 hPa || Queensland || || ||
 * Leo (1977) || || || || || || ||
 * Trudy (1978) || || || || || || ||
 * Winnie (1978) || || || || || || ||
 * Kerry (1979) || || || || || || ||
 * Hazel (1979) || || || || || || ||
 * Idylle (1979) || || || || || || ||
 * }
 * Trudy (1978) || || || || || || ||
 * Winnie (1978) || || || || || || ||
 * Kerry (1979) || || || || || || ||
 * Hazel (1979) || || || || || || ||
 * Idylle (1979) || || || || || || ||
 * }
 * Hazel (1979) || || || || || || ||
 * Idylle (1979) || || || || || || ||
 * }
 * }

1980s

 * Brian (1980) || || || || || || ||
 * Fred (1980) || || || || || || ||
 * Simon || 21–28 February 1980 || 90 kn || 950 hPa || Queensland, New Zealand || Minor || None ||
 * Doris–Gloria (1980) || || || || || || ||
 * Alice–Adelaide (1980) || || || || || || ||
 * Felix (1980) || || || || || || ||
 * Neil (1981) || || || || || || ||
 * Olga (1981) || || || || || || ||
 * Chris-Damia (1982) || || || || || || ||
 * Bernie (1982) || || || || || || ||
 * Jane || 2–11 January 1983 || 90 kn || 947 hPa || Western Australia || None || None ||
 * Elinor || 10 February – 3 March 1983 || 90 kn || 935 hPa || Queensland || Minor || None ||
 * Quenton (1983) || || || || || || ||
 * Bobby (1984) || || || || || || ||
 * Chloe (1984) || || || || || || ||
 * Daryl (1984) || || || || || || ||
 * Odette || 16–20 January 1985 || 100 kn || 930 hPa || Cape York Peninsula, Vanuatu || || ||
 * Sandy || 20–24 March 1985 || 105 kn || 953 hPa || Northern Territory, Western Australia || N/A || None ||
 * Victor (1986) || || || || || || ||
 * Billy–Lila || 5–12 May 1986 || 170 km/h (105 mph) || 950 hPa || Western Australia || None || None ||
 * Elsie || 22–27 February 1987 || 100 kn || 940 hPa || Western Australia || N/A || None ||
 * Gwenda-Ezenina (1988) || || || || || || ||
 * Ned || 25 March – 1 April 1989 || 100 kn || 941 hPa || Western Australia || Minor || None ||
 * }
 * Quenton (1983) || || || || || || ||
 * Bobby (1984) || || || || || || ||
 * Chloe (1984) || || || || || || ||
 * Daryl (1984) || || || || || || ||
 * Odette || 16–20 January 1985 || 100 kn || 930 hPa || Cape York Peninsula, Vanuatu || || ||
 * Sandy || 20–24 March 1985 || 105 kn || 953 hPa || Northern Territory, Western Australia || N/A || None ||
 * Victor (1986) || || || || || || ||
 * Billy–Lila || 5–12 May 1986 || 170 km/h (105 mph) || 950 hPa || Western Australia || None || None ||
 * Elsie || 22–27 February 1987 || 100 kn || 940 hPa || Western Australia || N/A || None ||
 * Gwenda-Ezenina (1988) || || || || || || ||
 * Ned || 25 March – 1 April 1989 || 100 kn || 941 hPa || Western Australia || Minor || None ||
 * }
 * Victor (1986) || || || || || || ||
 * Billy–Lila || 5–12 May 1986 || 170 km/h (105 mph) || 950 hPa || Western Australia || None || None ||
 * Elsie || 22–27 February 1987 || 100 kn || 940 hPa || Western Australia || N/A || None ||
 * Gwenda-Ezenina (1988) || || || || || || ||
 * Ned || 25 March – 1 April 1989 || 100 kn || 941 hPa || Western Australia || Minor || None ||
 * }
 * Gwenda-Ezenina (1988) || || || || || || ||
 * Ned || 25 March – 1 April 1989 || 100 kn || 941 hPa || Western Australia || Minor || None ||
 * }
 * Ned || 25 March – 1 April 1989 || 100 kn || 941 hPa || Western Australia || Minor || None ||
 * }

1990s

 * Ivor || 15–26 March 1990 || 90 kn || 965 hPa || Cape York Peninsula || || ||
 * Joy || 15–27 December 1990 || 90 kn || 940 hPa || Solomon Islands, Queensland || ||  ||
 * Errol (1991) || || || || || || ||
 * Marian (1991) || || || || || || ||
 * Betsy || || 90 kn || 950 hPa || Solomon Islands, Vanuatu, New Caledonia, New Zealand || Unknown || Unknown ||
 * Harriet-Heather (1992) || || || || || || ||
 * Ian || 27 February – 3 March 1992 || 105 kn || 930 hPa || Western Australia || || ||
 * Esau || 24 February – 7 March 1992 || 105 kn || 925 hPa || Vanuatu || Minimal ||  ||
 * Jane-Irna (1992) || || || || || || ||
 * Nina || 21 December 1992 – 5 January 1993 || 80 kn || 970 hPa || Queensland, Tonga, Papua New Guinea, Solomon Islands, Wallis and Futuna ||  || 32 ||
 * Oliver || 5–14 February 1993 || 100 kn || 950 hPa || Queensland || || ||
 * Sharon || 12–22 March 1994 || 105 kn || 930 hPa || Indonesia, Western Australia || ||  ||
 * Annette || 12–20 December 1994 || 105 kn || 925 hPa || Western Australia, South Australia || ||  ||
 * Bobby || 19–27 February 1995 || 105 kn || 925 hPa || Northern Territory, Western Australia || || ||
 * Agnes || 16–22 April 1995 || 100 kn || 945 hPa || || || ||
 * Frank || 6–13 December 1995 || 95 kn || 950 hPa || Western Australia || || ||
 * Barry || 4–7 January 1996 || 100 kn || 950 hPa || Queensland || ||  ||
 * Kirsty || 7–14 March 1996 || 100 kn || 935 hPa || Western Australia || || ||
 * Olivia || 5–12 April 1996 || 105 kn || 925 hPa || Western Australia, South Australia || ||  ||
 * Drena (1997) || || || || || || ||
 * Rhonda || 11–17 May 1997 || 95 kn || 935 hPa || Cocos Islands, Western Australia || || ||
 * Katrina || 1–25 January 1998 || 90 kn || 940 hPa || Solomon Islands, Vanuatu, Queensland || ||  ||
 * Tiffany (1998) || || || || || || ||
 * Elaine || 16–20 March 1999 || 90 kn || 945 hPa || Western Australia || || ||
 * Frederic–Evrina (1999) || || || || || || ||
 * }
 * Bobby || 19–27 February 1995 || 105 kn || 925 hPa || Northern Territory, Western Australia || || ||
 * Agnes || 16–22 April 1995 || 100 kn || 945 hPa || || || ||
 * Frank || 6–13 December 1995 || 95 kn || 950 hPa || Western Australia || || ||
 * Barry || 4–7 January 1996 || 100 kn || 950 hPa || Queensland || ||  ||
 * Kirsty || 7–14 March 1996 || 100 kn || 935 hPa || Western Australia || || ||
 * Olivia || 5–12 April 1996 || 105 kn || 925 hPa || Western Australia, South Australia || ||  ||
 * Drena (1997) || || || || || || ||
 * Rhonda || 11–17 May 1997 || 95 kn || 935 hPa || Cocos Islands, Western Australia || || ||
 * Katrina || 1–25 January 1998 || 90 kn || 940 hPa || Solomon Islands, Vanuatu, Queensland || ||  ||
 * Tiffany (1998) || || || || || || ||
 * Elaine || 16–20 March 1999 || 90 kn || 945 hPa || Western Australia || || ||
 * Frederic–Evrina (1999) || || || || || || ||
 * }
 * Drena (1997) || || || || || || ||
 * Rhonda || 11–17 May 1997 || 95 kn || 935 hPa || Cocos Islands, Western Australia || || ||
 * Katrina || 1–25 January 1998 || 90 kn || 940 hPa || Solomon Islands, Vanuatu, Queensland || ||  ||
 * Tiffany (1998) || || || || || || ||
 * Elaine || 16–20 March 1999 || 90 kn || 945 hPa || Western Australia || || ||
 * Frederic–Evrina (1999) || || || || || || ||
 * }
 * Elaine || 16–20 March 1999 || 90 kn || 945 hPa || Western Australia || || ||
 * Frederic–Evrina (1999) || || || || || || ||
 * }
 * Frederic–Evrina (1999) || || || || || || ||
 * }

2000s

 * Norman || 29 February–9 March, 2000 || 100 kn || 930 hPa || Western Australia || None || None ||
 * Fiona || 3–13 February, 2003 || 95 kn || 935 hPa || None || None || None ||
 * Monty || 25 February – 3 March 2004 || 100 kn || 935 hPa || Western Australia || Minimal || None ||
 * Oscar || 21–27 March, 2004 || 90 kn || 940 hPa || None || None || None ||
 * Bertie || 19–24 November, 2005 || 100 kn || 928 hPa || None || None || None ||
 * Larry || 15–20 March 2006 || 100 kn || 935 hPa || Queensland || || 1 ||
 * Floyd || 18–27 March, 2006 || 105 kn || 916 hPa || Pilbara Coast || None || None ||
 * Pancho || 25–29 March, 2008 || 90 kn || 938 hPa || Christmas Island, Western Australia || None || None ||
 * Billy || 15 December, 2008–5 January, 2009 || 95 kn || 950 hPa || Western Australia || None || 1 ||
 * Ilsa || 12–27 March, 2009 || 90 kn || 958 hPa || None || None || None ||
 * }
 * Larry || 15–20 March 2006 || 100 kn || 935 hPa || Queensland || || 1 ||
 * Floyd || 18–27 March, 2006 || 105 kn || 916 hPa || Pilbara Coast || None || None ||
 * Pancho || 25–29 March, 2008 || 90 kn || 938 hPa || Christmas Island, Western Australia || None || None ||
 * Billy || 15 December, 2008–5 January, 2009 || 95 kn || 950 hPa || Western Australia || None || 1 ||
 * Ilsa || 12–27 March, 2009 || 90 kn || 958 hPa || None || None || None ||
 * }
 * Billy || 15 December, 2008–5 January, 2009 || 95 kn || 950 hPa || Western Australia || None || 1 ||
 * Ilsa || 12–27 March, 2009 || 90 kn || 958 hPa || None || None || None ||
 * }
 * Ilsa || 12–27 March, 2009 || 90 kn || 958 hPa || None || None || None ||
 * }

2010s

 * Ului || 14–21 March 2010 || 105 kn || 939 hPa || Vanuatu, Solomon Islands, Queensland || Unknown || Unknown ||
 * Zelia || 12–16 January 2011 || 100 kn || 943 hPa || None || None || None ||
 * Bianca || 21–30 January 2011 || 95 kn || 949 hPa || Western Australia || None || None ||
 * Narelle || 5–15 January 2013 || 105 kn || 930 hPa || Western Australia || None || None ||
 * Rusty || 21 February – 1 March 2013 || 90 kn || 944 hPa || Western Australia || Unknown || Unknown ||
 * Christine || 25 December 2013 – 1 January 2014 || 90 kn || 948 hPa || Western Australia || Unknown || Unknown ||
 * Lam || 14–20 February 2015 || 100 kn || 943 hPa || Northern Australia || Unknown || Unknown ||
 * Nathan || 4–8 April 2015 || 90 kn || 963 hPa || Northern Australia || Unknown || Unknown ||
 * Ikola || 4–8 April 2015 || 95 kn || 953 hPa || None || None || None ||
 * Quang || 27 April – 1 May 2015 || 100 kn || 950 hPa || Western Australia || Minor || None ||
 * Debbie || 23 March – 7 April 2017 || 95 kn || 949 hPa || Queensland, New South Wales || || None ||
 * Savannah || 8–17 March 2019 || 95 kn || 953 hPa || Cocos Islands || Minor || None ||
 * Trevor || 11–26 March 2019 || 95 kn || 950 hPa || Papua New Guinea, Queensland, Northern Territory || Unknown || Unknown ||
 * }
 * Nathan || 4–8 April 2015 || 90 kn || 963 hPa || Northern Australia || Unknown || Unknown ||
 * Ikola || 4–8 April 2015 || 95 kn || 953 hPa || None || None || None ||
 * Quang || 27 April – 1 May 2015 || 100 kn || 950 hPa || Western Australia || Minor || None ||
 * Debbie || 23 March – 7 April 2017 || 95 kn || 949 hPa || Queensland, New South Wales || || None ||
 * Savannah || 8–17 March 2019 || 95 kn || 953 hPa || Cocos Islands || Minor || None ||
 * Trevor || 11–26 March 2019 || 95 kn || 950 hPa || Papua New Guinea, Queensland, Northern Territory || Unknown || Unknown ||
 * }
 * Debbie || 23 March – 7 April 2017 || 95 kn || 949 hPa || Queensland, New South Wales || || None ||
 * Savannah || 8–17 March 2019 || 95 kn || 953 hPa || Cocos Islands || Minor || None ||
 * Trevor || 11–26 March 2019 || 95 kn || 950 hPa || Papua New Guinea, Queensland, Northern Territory || Unknown || Unknown ||
 * }
 * Trevor || 11–26 March 2019 || 95 kn || 950 hPa || Papua New Guinea, Queensland, Northern Territory || Unknown || Unknown ||
 * }

2020s

 * Ferdinand || 22 February – 1 March 2020 || 95 kn || 951 hPa || None || None || None ||
 * Vernon || 22 February – 3 March 2022 || 100 kn || 948 hPa || None || None || None ||
 * Charlotte || 16–24 March 2022 || 90 kn || 956 hPa || Timor-Leste, Western Australia || None || None ||
 * Freddy || 4–14 February 2023 || 95 kn || 951 hPa || None || None || None ||
 * Jasper || 4–18 December 2023 || 105 kn || 938 hPa || Solomon Islands, Queensland || || 1 ||
 * Neville || 4–24 March, 2024 || 100 kn || 948 hPa || Cocos Islands, Christmas Island || None || None ||
 * Megan || 13–21 March, 2024 || 90 kn || 955 hPa || Queensland, Northern Territory || None || None ||
 * }
 * Jasper || 4–18 December 2023 || 105 kn || 938 hPa || Solomon Islands, Queensland || || 1 ||
 * Neville || 4–24 March, 2024 || 100 kn || 948 hPa || Cocos Islands, Christmas Island || None || None ||
 * Megan || 13–21 March, 2024 || 90 kn || 955 hPa || Queensland, Northern Territory || None || None ||
 * }
 * Megan || 13–21 March, 2024 || 90 kn || 955 hPa || Queensland, Northern Territory || None || None ||
 * }
 * }

Other systems

 * Chris–Damia – Cat 4 in SWIO.
 * Walter–Gregoara – Cat 4 in SWIO.
 * Harriet–Heather – Cat 4 in SWIO.
 * Uriah – Cat 4 in SWIO.

Over the years, the intensity estimates of tropical cyclones have been reanalysed for various reasons and were found to have been underestimated by the various warning centres. In particular, during a database repair project that took place between 2005 and 2007, the BoM discovered that Severe Tropical Cyclone Pam of 1974, had been reanalysed at some point after 1979. This reanalysis showed that Pam had moved out of the South Pacific region and into the Australian region, as a category 5 severe tropical cyclone. However, a later reanalysis by the BoM during 2021 downgraded it to a category 4 severe tropical cyclone, as it was thought that the width of the southern eyewall was too narrow for a category 5 severe tropical cyclone.