T. Thrivikraman (Thekkedath Thrivikraman) (born May 6, 1943) is an Indian mathematician who has made important contributions to topology, fuzzy mathematics, history of mathematics and to several other areas of mathematics. He actively promoted the culture of mathematical research in Kerala, himself guiding as many as 29 students in their doctoral research. He was also actively involved in the activities of the science popularization movement known as Kerala Sasthra Sahithya Parishad.