The New York–Pennsylvania League of 1923 through 1937 was an American minor league baseball circuit. The forerunner to the modern Class AA Eastern League, it was a Class B circuit through 1932 and upgraded to Class A for the final five seasons of its existence. It is actually the second of three leagues to bear the name. The original NY-P League played for one season, in 1891. In 1957, the PONY League changed its name to the New York–Penn League and has operated under that identity since, beginning as a Class D loop and now as a Short Season A league.