Tinne Gilis (born 29 October 1997) is a Belgian professional squash player.

[1] She reached a career high ranking of number 5 in the world during November 2024.

[3] In May 2024, Gillis helped Belgium win their first ever European Squash Team Championships.

[4] Later that year in December 2024, Gillis helped Belgium win the bronze medal at the 2024 Women's World Team Squash Championships.

[5] Tinne's older sister, Nele Coll (née Gilis) is also a squash player and her fellow competitor on the PSA World Tour.