Raimais (レイメイズ, Reimeizu) is a maze chase arcade game released in April 1988 in Japan by Taito.

The game was ported to the Famicom Disk System under the title Youmais the same year.

It was included as part of the compilation Taito Legends 2 in 2006, marking its first official release in the west.

It was also re-released as part of the Arcade Archives lineup on the PlayStation 4 and Nintendo Switch on November 18, 2021, worldwide.

In Japan, Game Machine listed Raimais on their June 15, 1988 issue as being the eleventh most-successful table arcade unit of the month.