Tomasz Zamoyski (1594 – 7 January 1638) was a Polish-Lithuanian nobleman (szlachcic) and magnate.
Tomasz was the 2nd Ordynat of the Zamosc estates.
He was voivode of Podole Voivodeship in 1618, voivode of Kijów Voivodeship in 1619, starost of Kraków in 1628, Deputy Chancellor of the Crown in 1635, as well as starost of Knyszyn, Sokal, Nowy Targ, Rabsztyn, Kalusz, Goniadz and Rzeczyce.
The town of Tomaszów was named after him.
He married Katarzyna Ostrogska in 1620 and had three children with her.