CPS1 may refer to:

• CPS-1, the Capcom Play System 1
• Parry Sound Harbour Water Aerodrome, the IATA airport code
• Carbamoyl phosphate synthase

• Fusion of the legal profession
• Fusion peptide
• Fusion peptides
• Fusion (political magazine)
• Fusion propulsion
• Fusion proteins
• Fusion (rave)
• Fusion research
• Fusion restaurant
• Fusions
• Fusion (student movement)
• Fusion surgery
• Fusion Table
• Fusion Tower
• Fusion TV
• Fusitheca
• FUSM
• Fusobacterium prausnitzii
• Fuso-class battleship
• Fusogen
• Fuson
• FU (song)
• Fusonia
• Fusonia, Kentucky
• Fusonia, KY