Lohja is famed for its cultural events. More than a hundred different events are arranged in the town each year by its residents and organizations. The most notable are the Lohja Summer Cultural Festival, the Apple Carnival organized by representatives of business and commerce, the retailers' Hurlumhei Carnival and the Old Time Christmas market continue the tradition of fairs dating back to the Middle Ages.
The Doom Metal band Reverend Bizarre is from this town