Veselin Masleša (Serbian Cyrillic: Веселин Маслеша; 20 April 1906 – 14 June 1943) was a Yugoslav writer, activist and Partisan.

Veselin Masleša was born to a Bosnian Serb family in Banja Luka, Bosnia and Herzegovina, then occupied by Austria-Hungary, where he finished grade school and gymnasium.

He then studied law at the University of Zagreb, economics in Frankfurt and then political economy and sociology in Paris.

He wrote two large studies called Mlada Bosna and Svetozar Marković which were published later in 1945.

[1] Masleša died during the attempted breakout through enemy lines during the Axis Case Black offensive in the summer of 1943.