New York State Route 155 is a short state highway located in Albany County, New York. It runs approximately 3.5 miles, connecting New York State Route 85 in the town of Guilderland to New York State Route 5 in the city of Albany. The route primarily serves local traffic and provides access to residential areas and businesses. The highway is known for its scenic views, particularly as it passes through suburban neighborhoods. Established in the mid-20th century, NY 155 plays a role in the regional transportation network, facilitating travel within the area while connecting to larger roadways.