Happysad (stylized as happysad) is a Polish rock band. The band plays melodic rock with elements of punk and reggae. It was created in Skarżysko-Kamienna in 2001 by musicians who had been playing since 1995 under the name HCKF (Hard Core’owe Kółko Filozoficzne, "Hardcore Philosophical Circle"). In 1997 the name was changed to Happy Sad Generation. The name Happysad was established in 2002.

Their first demo was released in 2002, contents of which were included in their debut album Wszystko jedno, released in 2004. Its music was described as "regressive rock completed with characteristic lyrics".

The band went on multiple national tours in Poland.