Puca or PUCA may refer to

• Púca, faery creature of Celtic folklore.
• Puka (Peru), also spelled Puca, a mountain in Peru
• Puck (mythology), fairy or mischievous nature sprite in English folklore (possibly related to Púca)
• Florin Pucă (1932–1990), Romanian graphic artist
• Central American Unionist Party (Partido Unionista Centroamericano), center-right Nicaraguan political party

• Dašnica (Aleksandrovac)
• Dašnica, Aleksinac
• Daŭm
• Da-ŭm
• Daŭmont of Lithuania
• Dažnica
• Dașca
• Daʽan
• Daˤī
• DAΦNE
• Daṇḍa
• Da‘wat dhul-‘Ashīra
• Da‘wat dhul-‘Ashīrah
• Da’erba
• Da’i
• Da’Sean Butler
• Da’ T.R.U.T.H.
• Da’wa
• Db120
• DB120
• DB2 (disambiguation)
• Db4o
• DB4O
• Db4objects
• Db4o (object database)