Thea Doelwijt (born 3 December 1938) is a Surinamese-Dutch writer.

Doelwijt wrote two widely read novels, and in the 1970s and 1980s, she wrote many plays, musicals and cabaret acts, including A Fat Black Woman Like Me and Iris.

Doelwijt also contributed to the English-language anthology of Surinamese literature, Diversity is power (2007).

As a writer-in-residence, Doelwijt developed major workshops in Suriname.

In 1982, after the December Murders, Doelwijt returned to the Netherlands, and became a full-time writer.