Tomáš Ostrák (born 5 February 2000) is a Czech professional footballer who plays as a midfielder for Major League Soccer club St. Louis City SC.

[2] Ostrák began his career at the Czech club MFK Frýdek-Místek.

[3] In January 2019, he was given the opportunity to train with the club's first team squad by manager Markus Anfang.

[3] On 28 August 2021 Ostrák made his debut appearance for Köln in a 2–1 home win against VfL Bochum.

[5] In February 2022, it was announced that Ostrák would not renew his contract with Köln and join the Major League Soccer club St. Louis City SC, who would begin play in 2023, joining the second team first in July 2022.