Ace1, ACE-1, ace 1, or variation, may refer to:

• Angiotensin-converting enzyme 1 (ACE1)
• Samsung Galaxy Ace 1 (cellphone) 2011 smartphone
• Air Combat Emulator 1 (video game) (ACE 1), 1985
• ACE 1.x versions of ACE (compressed file format), the only freely available compression versions
• ancestral coatomer elements type 1 (ACE1), alpha solenoid type structural Nucleoporins

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• Ace (disambiguation)
• Ace 2 (disambiguation)
• acel (disambiguation)
• acei (disambiguation)
• ACER1 (alkaline ceramidase 1)

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