Frederick Gillespie (born June 14, 1997) is an American professional basketball player for Olimpia Milano of the Italian Lega Basket Serie A (LBA) and the EuroLeague.

[1] He entered East Ridge High School at 5'11" and did not play basketball his freshman year, after breaking his ankle on the first day of team tryouts.

Gillespie played varsity ball as a junior but tore his ACL late in the season, causing him to miss the summer AAU circuit.

[4] Gillespie started his collegiate career at Division III Carleton College, choosing the school due to its academic pedigree.

[6] Gillespie joined the Baylor basketball team as a walk-on, sitting out a year due to NCAA transfer rules and then earning a scholarship.

[9][10] After going undrafted in the 2020 NBA draft, Gillespie signed a training camp contract with the Dallas Mavericks,[11] but didn't make the final roster.

[14] Two days later, he made his debut with the Raptors, recording six points, four rebounds, one assist, three steals and one block in 18 minutes during a 135–115 win against the Cleveland Cavaliers.

[17] On April 18, Gillespie signed a second 10-day contract[18] and tied his career-high with 10 points, two rebounds, one assist and one steal, going a perfect 4 of 4 from the field in a 112–106 win against the Oklahoma City Thunder.