Tatsuhiko Takimoto is a Japanese author known for his novel Welcome to the N.H.K., the best-known fictional work dealing with hikikomori.

Several novels he has serialized have had their collections delayed for several years while he revises them extensively.

Takimoto participated in "Live at Faust," an anthology published by the Japanese literary magazine, Faust. He contributed a ~30 page story and part of a collaboratively written "relay novel" along with four other young writers.