2018 Tevlin Women's Challenger

The 2018 Tevlin Women's Challenger was a professional tennis tournament played on indoor hard courts. It was the fourteenth edition of the tournament and was part of the 2018 ITF Women's Circuit. It took place in Toronto, Canada, on 29 October–4 November 2018.

Seeds

 * 1 Rankings as of 22 October 2018.

Other entrants
The following players received a wildcard into the singles main draw:
 * 🇨🇦 Ariana Arseneault
 * 🇨🇦 Carson Branstine
 * 🇨🇦 Louise Kwong
 * 🇨🇦 Catherine Leduc

The following player received entry using a protected ranking:
 * Quirine Lemoine

The following player received entry as a special exempt:
 * 🇺🇦 Daria Lopatetska

The following players received entry from the qualifying draw:
 * 🇷🇴 Andreea Ghițescu
 * 🇺🇸 Nadja Gilchrist
 * 🇺🇸 Kennedy Shaffer
 * 🇩🇪 Natalia Siedliska

The following players received entry as lucky losers:
 * 🇷🇴 Alexandra Damaschin
 * 🇺🇸 Tori Kinard
 * 🇺🇸 Pamela Montez

Singles

 * Quirine Lemoine def. 🇺🇦 Kateryna Kozlova, 6–2, 6–3

Doubles

 * 🇨🇦 Sharon Fichman / 🇺🇸 Maria Sanchez def. 🇵🇱 Maja Chwalińska / 🇧🇬 Elitsa Kostova, 6–0, 6–4