Gigatitan is an extinct genus of titanopteran insect that lived in Kyrgyzstan during the Triassic period.

[3] It is the type genus of the family Gigatitanidae, in which the closely related Nanotitan and Ootitan are also included.

[2][4] Gigatitan was a large insect, type species, G. vulgaris is estimated to have wingspan up to 40 centimetres (16 in).

[1] In life, Gigatitan was a mantis-like predator, with forelegs that have similarly enlarged and bore spines for prey capture.

[6] It had dark, transverse stripes on its wings, which is similar to modern diurnal mantis Blepharopsis mendica.