2018 Darwin Tennis International

The 2018 Darwin Tennis International was a professional tennis tournament played on outdoor hard courts. It was the fifth edition of the tournament and was part of the 2018 ITF Men's Circuit and the 2018 ITF Women's Circuit. It took place in Darwin, Australia, on 24–30 September 2018.

Seeds

 * 1 Rankings as of 17 September 2018.

Other entrants
The following players received a wildcard into the singles main draw:
 * 🇦🇺 Alison Bai
 * 🇦🇺 Naiktha Bains
 * 🇦🇺 Kaylah McPhee
 * 🇦🇺 Olivia Tjandramulia

The following players received entry from the qualifying draw:
 * 🇦🇺 Maddison Inglis
 * 🇯🇵 Kyōka Okamura
 * 🇫🇷 Irina Ramialison
 * 🇸🇰 Zuzana Zlochová

The following player received entry as a lucky loser:
 * 🇺🇦 Marianna Zakarlyuk

Seeds

 * 1 Rankings as of 17 September 2018.

Other entrants
The following players received a wildcard into the singles main draw:
 * 🇦🇺 Ken Cavrak
 * 🇦🇺 Alexander Crnokrak
 * 🇦🇺 Jesse Delaney
 * 🇦🇺 Mustafa Ibraimi

The following player received entry into the singles main draw by a special exempt:
 * 🇦🇺 Jayden Court

The following players received entry from the qualifying draw:
 * 🇦🇺 David Barclay
 * 🇦🇺 Corey Gaal
 * 🇺🇸 Christian Langmo
 * 🇦🇺 Winter Meagher
 * 🇯🇵 Masayoshi Ono
 * 🇫🇷 Vincent Stouff
 * 🇦🇺 Jacob Sullivan
 * 🇦🇺 Socrates Leon Tsoronis

Women's singles

 * 🇦🇺 Kimberly Birrell def. 🇦🇺 Ellen Perez, 6–3, 6–3

Men's singles

 * 🇯🇵 Yuta Shimizu def. 🇬🇧 Evan Hoyt, 7–6(8–6), 3–6, 6–4

Women's doubles

 * 🇮🇳 Rutuja Bhosale / 🇯🇵 Hiroko Kuwata def. 🇦🇺 Kimberly Birrell / 🇬🇧 Katy Dunne, 6–2, 6–4

Men's doubles

 * 🇦🇺 Jeremy Beale / 🇦🇺 Thomas Fancutt def. 🇬🇧 Brydan Klein / 🇦🇺 Scott Puodziunas, 7–6(7–4), 6–3