Transit Orange is the brand name for bus transit services in Orange County, New York. Under the brand name of Transit Orange, mini-systems, mostly municipally-run, serve various towns across Orange County. In addition to these municipal and private services, Transit Orange also owns The Main Line bus, and oversees municipal dial-a-bus operations. Along with Short Line Bus and the Metro-North Port Jervis Line, Transit Orange forms the basis of public transportation in Orange County.

Bus service in Orange County in 1934, when Newburgh's system was founded. In 1935, Middletown's system commenced operations. Kiryas Joel's system likely was created sometime in the 1970s, when Kiryas Joel was founded. By the mid-2000s, 16 different private companies operated in Orange County, and none had any connections with each other.

As a solution, Transit Orange was created in 2006 to consolidate and unify the operations of the multiple different companies that ran services in Orange County at the time. Transit Orange did not directly take over or replace any transit systems, however local and dial-a-bus services began using county-owned and Transit Orange-branded vehicles. In 2023, services overseen by the county had a total ridership of 948,891 passengers per year.

In June 2024, system redesign proposals were released for the Middletown and Newburgh systems.

Transit Orange does not directly operate any routes; all operations are contracted out. When the operator is known, it is listed.

All municipal services are operated as their own private companies, but their fleets mostly or entirely consist of leased buses owned by Transit Orange, and all services operate under the Transit Orange brand name.

The Middletown system, officially known as the Middletown Transit Corporation, is operated by Short Line Bus. Four routes operate from a central hub on Railroad Avenue, located in Downtown Middletown. The system has existed since 1935.

In June 2024, a system redesign proposal was released for the Middletown system.