2018 Tennis Championships of Honolulu

The 2018 Tennis Championships of Honolulu was a professional tennis tournament played on outdoor hard courts. It was the first edition of the tournament and was part of the 2018 ITF Women's Circuit. It took place in Honolulu, United States, on 9–15 July 2018.

Seeds

 * 1 Rankings as of 2 July 2018.

Other entrants
The following players received a wildcard into the singles main draw:
 * 🇺🇸 Ashley Lahey
 * 🇩🇪 Lena Lutzeier
 * 🇺🇸 Anastasia Nefedova
 * 🇺🇸 Amanda Rodgers

The following players received entry from the qualifying draw:
 * 🇷🇴 Andreea Ghițescu
 * 🇺🇸 Catherine Harrison
 * 🇵🇪 Dominique Schaefer
 * 🇺🇸 Denise Starr

Singles

 * 🇯🇵 Nao Hibino def. 🇺🇸 Jessica Pegula, 6–0, 6–2

Doubles

 * 🇯🇵 Misaki Doi / 🇺🇸 Jessica Pegula def. 🇺🇸 Taylor Johnson / 🇺🇸 Ashley Lahey, 7–6(7–4), 6–3