PC3 (disambiguation)

PC3 may refer to:


 * PC3, a prostate cancer cell line
 * Paul Colman Trio, a Christian band
 * Prairie Capital Convention Center, a convention center in Springfield, IL, United States
 * The Clandestine Colombian Communist Party, an illegal Colombian political party
 * DDR3 SDRAM
 * Physical Containment Level 3, a research facility certification used in Australasia (third highest of four levels, PC1–PC4)