Horror Theater Unbalance is a 1973 Japanese Anthology television series created by Tsuburaya and Fuji TV to air on the Fuji TV network on Monday Nights for 13 episodes.

Originally started in production in 1969, it was shelved and took years for its airing debut to begin its broadcast, before production was eventually completed at the end of 1972. It was then aired on Fuji TV in 1973.