Katalin Rényi ([ˈreːɲi ˈkɒtɒlin]; 19 May 1951 – 29 August 2023) was a Hungarian painter and graphic designer.

[1][4] After graduating, she began a twenty-year career in advertisement design, specializing in movie posters.

[2] Rényi moved with her husband to Szentendre as he wished to be involved with the town's art colony.

[5] Rényi held an art exhibition in 1992,[3] and she founded the Montázs Drawing Studio in the same year.

[2] According to her son, Baska's death prompted Rényi to distract herself with her work, producing art at five times her normal rate.