PL2 may refer to:
China Railways PL2, one of the industrial locomotives used by China Railway Pazmany PL-1 (and PL-2), American two-seat trainer and personal light aircraft PL-2, a series of Chinese air-to-air missiles Premier League 2, the under-21 youth development league for association football in England Harter's 2-Poisson indexing-model, a divergence-from-randomness model used in information retrieval
See also PLL (disambiguation) PL (disambiguation)