New York State Route 305 (NY 305) is a north–south route in the Southern Tier that runs from the Pennsylvania state line in Cattaraugus County to the hamlet of Belfast in Allegany County, where it ends at NY 19. It intersects the Southern Tier Expressway in Cuba.

Cuba is a village in Allegany County, New York, United States. The population was 1,575 at the 2010 census. The village is in the western part of the town of Cuba at the junction of Routes 305 and 446 on Oil Creek.