M66 (New York City bus)

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m66
A 1998 Nova Bus RTS-06 (5072) on the Upper East Side-bound M66 at West 65th Street/West End Avenue. This bus is retired.
Overview
System	MTA Regional Bus Operations
Operator	Manhattan and Bronx Surface Transit Operating Authority
Garage	Michael J. Quill Depot
Vehicle	New Flyer Xcelsior XD40 New Flyer Xcelsior XE40 Nova Bus LFS HEV
Began service	February 15, 1935
Route
Locale	Manhattan, New York, U.S.
Communities served	Upper West Side, Lincoln Square, Upper East Side, Lenox Hill
Start	Upper West Side - 66th Street & West End Avenue
Via	66th Street, 67th Street (westbound) 65th Street, 68th Street (eastbound)
End	Upper East Side – 68th Street & York Avenue
Length	2.1 miles (3.4 km)
Other routes	M72 72nd Street Crosstown
Service
Operates	All times except late nights
Annual patronage	1,728,433 (2023)[1]
Transfers	Yes
Timetable	M66
Route map ← M60  {{{system_nav}}}  M72 →

The M66 constitutes a public transit line in Manhattan. Originally run by the Comprehensive Omnibus Company, it is now part of MTA Regional Bus Operations and operated by the Manhattan and Bronx Surface Transit Operating Authority under the New York City Transit brand, running between the Upper East Side and Upper West Side as one of Manhattan's numerous crosstown bus routes.