New York State Route 446 (NY 446) is a state highway in the Southern Tier of New York in the United States. The highway extends for 6.76 miles (10.88 km) on a northeast–southwest alignment from an intersection with NY 16 north of the hamlet of Hinsdale to a junction with NY 305 in the village of Cuba. It parallels the Southern Tier Expressway (NY 17 and Interstate 86 or I-86) very closely for its entire length. NY 446 was originally designated as part of Route 4, an unsigned legislative route, in 1908. The Hinsdale–Cuba highway received its first posted designation in 1924 when it was included as part of NY 17. It was renumbered twice, becoming part of NY 63 in 1930 and NY 408 in the 1940s, before gaining its current designation c. 1975.