Liberty cap

Liberty cap most often refers to:


 * Phrygian cap or pileus (hat), emblematic of a slave's manumission in classical antiquity

Liberty cap may also refer to:
 * Liberty Cap (California), a granite dome in Yosemite National Park


 * Liberty Cap, a prominent peak on Mount Rainier
 * Liberty cap (Psilocybe semilanceata), a psilocybin mushroom
 * Liberty Cap half cent, an early coin of the United States dollar
 * Liberty Cap large cent, an early coin of the United States dollar