Kacper Tobiasz (born 4 November 2002) is a Polish professional footballer who plays as a goalkeeper for Ekstraklasa club Legia Warsaw.

[4] Having completed the spring round in Olsztyn, he returned to Warsaw and became Legia's first goalkeeper for the 2022–23 season.

[5] On 2 May 2023, he was named top player of the 2022–23 Polish Cup final match against Raków Częstochowa, won by Legia following a penalty shootout.

[6] In the 2023–24 season, he contributed to Legia's UEFA Europa Conference League campaign, with the club advancing from their group following wins against Aston Villa, AZ Alkmaar and Zrinjski Mostar.

However, after several months of weaker form, and directly after losing a UECL play-off match against Norwegian side Molde (0–3) on 22 February, he forfeited his place in the starting line-up to Dominik Hładun.