The Bx23 and Q50 bus routes constitute a public transit corridor running between the Pelham Bay and Co-op City neighborhoods in The Bronx, New York City, United States. The two routes serve all five numerical sections of Co-op City, with the Q50 providing limited-stop service, and the Bx23 running clockwise or counterclockwise service through the neighborhood beginning and ending at a major bus-subway connection at Pelham Bay Park. The Q50 continues south of Pelham Bay into the borough of Queens, terminating at the Flushing – Main Street subway station. Both routes are city-operated under the MTA Bus Company brand of MTA Regional Bus Operations, the only two local routes in the Bronx to operate under MTA Bus.