2021 Cronulla-Sutherland Sharks season

The 2021 Cronulla-Sutherland Sharks season was the 55th in the club's history. The club was coached by Josh Hannay in an interim role and captained by Wade Graham. The team was initially coached by John Morris, who was relinquished of his duties following the signing of Craig Fitzgibbon as coach for the 2022 NRL season. The team competed in the National Rugby League's 2021 Telstra Premiership.

Milestones

 * Round 1: Aaron Woods played his 50th game for the club.
 * Round 1: Aiden Tolman made his debut for the club, after previously playing for the Canterbury-Bankstown Bulldogs.
 * Round 2: Wade Graham played his 250th career game.
 * Round 4: Teig Wilton scored his 1st career try.
 * Round 6: Braden Hamlin-Uele played his 50th career game.
 * Round 8: Will Chambers made his debut for the club, after previously playing for the Melbourne Storm.
 * Round 9: Matt Moylan played his 50th game for the club.
 * Round 12: Shaun Johnson played his 200th career game.
 * Round 12: Briton Nikora played his 50th career and club game.
 * Round 12: Franklin Pele made his NRL debut for the club.
 * Round 15: Will Chambers scored his 1st try for the club.
 * Round 16: Aiden Tolman scored his 1st try for the club.
 * Round 17: Braydon Trindall scored his 1st career try.
 * Round 19: Toby Rudolf scored his 1st career try.
 * Round 20: Luke Metcalf made his NRL debut for the club.
 * Round 23: Luke Metcalf scored his 1st career try.

Pre-season
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Regular season
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Coaching staff
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 * Josh Hannay — NRL Head Coach (Interim)
 * Darren Mooney — General Manager – Football
 * Mark Noakes — NRL Performance Operations
 * Nathan Pickworth — Head of Performance
 * Dave Howlett — NRL Assistant Coach
 * Paul Gallen – NRL Specialist coach
 * Luke Lewis – NRL Specialist coach
 * Daniel Holdsworth – Elite Development Coach/NRL Assistant
 * Tony Grimaldi — Strength and Conditioning Coach
 * Alex Clarke — Strength Coach
 * Dave Garrick – NRL Physiotherapist
 * Pat Williams – NRL Physiotherapist
 * John Davey – Sports Scientist
 * Marc Leabres – Performance Analyst
 * Luke Mace - NRL Operations
 * Amanda King – Education and Wellbeing
 * Jeff Robson – Education and Wellbeing
 * Glenn Brailey – Academy and Talent Identification
 * Dr. George Pitsis – Club Doctor

Player movements
Losses
 * Bryson Goodwin to released
 * Shaun Johnson to released (mid-season)
 * Cameron King to Townsville Blackhawks (Intrust Super Cup)
 * Nene Macdonald to Norths Devils (Intrust Super Cup) (mid-season)
 * Scott Sorensen to Penrith Panthers
 * Chad Townsend to New Zealand Warriors (mid-season)
 * Bronson Xerri to suspended (mid-season)

Gains
 * Will Chambers from Suntory Sungoliath (Top League) (mid-season)
 * Jack Martin from Ipswich Jets (Hastings Deering Colts)
 * Luke Metcalf from Manly-Warringah Sea Eagles
 * Kai O'Donnell from Mackay Cutters (Intrust Super Cup) (mid-season)
 * Aiden Tolman from Canterbury-Bankstown Bulldogs

Representative honours

 * Bold denotes players who captained their respective teams.
 * (ToS) - Train on Squad

1 – Ronaldo Mulitalo was originally set to make his debut for the Queensland Maroons but was found to be ineligible despite having played representative rugby league for Queensland's under 18s and under 20s sides.

Squad statistics
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Pre-season
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Regular season
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Regular season
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Regular season
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 * The Sharks were originally set to compete in the Harvey Norman Women's Premiership finals series. Due to the COVID lockdown situation in Sydney as well as surrounding areas, the NSWRL made the decision to cancel qualifying matches and head straight to a grand final, eliminating the Sharks from the competition.

Regular season
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{| class="wikitable" style="font-size:75%; width:100%;" !Date!! Round !! Opponent !! Venue!! Result!! Score !! Tries !! Goals !! Field Goals !! Report ! colspan="10" align="center" | ''Due to heavy rainfall, round seven of the SG Ball Cup was postponed to the weekend of 10-11 April. The match was originally set to take place on the 20th of March.'' {| class="mw-collapsible mw-collapsed" width="100%" border="0" !Team Details {| width="100%"
 * - style="background:#fbb;"
 * 6 February||1|| Canberra colours.svg Canberra Raiders|| Bruce Oval, Canberra||Loss||24-28||Stonestreet, Abou-Arrage, Wilson, Dykes||Rivett 4/4||||
 * colspan="10" |
 * - style="background:#cfecec;"
 * 2||Bye||||||||||||||
 * - style="background:#cfc;"
 * 20 February||3|| North Sydney colours.svg North Sydney Bears|| PointsBet Stadium, Sydney||Win||50-6||Dykes (2), Rivett (2), Samrani, Wilson, Fuz, Levi, Hosking||Rivett 5/7, Samrani 2/2||||
 * colspan="10" |
 * - style="background:#cfc;"
 * 27 February||4|| Balmain colours.svg Balmain Tigers|| PointsBet Stadium, Sydney||Win||34-8||Samrani (2), Sikei, Lester, Rivett, Finau||Rivett 3/4, Samrani 2/2||||
 * colspan="10" |
 * - style="background:#fbb;"
 * 6 March||5|| Eastern Suburbs colours.svg Sydney Roosters|| Bill Hicks Oval, Wyong||Loss||14-26||Wilson, Stonestreet, Rivett||Rivett 1/3||||
 * colspan="10" |
 * - style="background:#fbb;"
 * 13 March||6|| St. George colours.svg Illawarra Steelers|| Collegians Sporting Complex, Wollongong||Loss||26-40||Dykes (3), Stonestreet, Rivett||Rivett 3/5||||
 * colspan="10" |
 * - style="background:#fbb;"
 * 10 April||7|| Parramatta colours.svg Parramatta Eels|| PointsBet Stadium, Sydney||Loss||18-54||Finau, Bishop, Stonestreet||Samrani 2/2, Rivett 1/1||||
 * colspan="10" |
 * colspan="10" |
 * - style="background:#fbb;"
 * 10 April||7|| Parramatta colours.svg Parramatta Eels|| PointsBet Stadium, Sydney||Loss||18-54||Finau, Bishop, Stonestreet||Samrani 2/2, Rivett 1/1||||
 * colspan="10" |
 * colspan="10" |
 * colspan="10" |
 * - style="background:#cfc;"
 * 27 March||8|| Western Suburbs colours.svg Western Suburbs Magpies|| PointsBet Stadium, Sydney||Win||54-18||Dykes (3), Samrani (2), Stonestreet (2), Sikei, Wilson||Rivett 9/9||||
 * colspan="10" |
 * - style="background:#cfc;"
 * 3 April||9||  Penrith Panthers|| BlueBet Stadium, Penrith||Win||28-18||Waitere (2), Healey, Finau, Stonestreet||Rivett 3/4, Samrani 1/1||||
 * colspan="10" |
 * colspan="10" |
 * colspan="10" |
 * width="50%" valign="top" |

! colspan="10" |Legend:
 * }
 * }
 * }

Regular season
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Regular season
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