PA1 or PA-1 may refer to:
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Pad Abort Test 1, a 1963 Apollo test flight
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Pad Abort 1 (Orion), a 2010 Orion test flight
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Pennsylvania state route 1, a former state highway near Philadelphia
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U.S. Route 1 in Pennsylvania
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Muhammed Akbar Khan, Pakistan Army general
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ALCO PA
The ALCO PA was a family of A1A-A1A diesel locomotives built to haul passenger trains. The locomotives were built in Schenectady, New York, in the United States, by a partnership of the American Locomotive Company (ALCO) and General Electric (G ...
, train locomotive
* The
PA1, a type of rolling stock used on the PATH train in New York and New Jersey
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PA-1 (cell line), a human ovarian cancer cell line
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PA1 key, on the IBM 3270 keyboard
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