Saint Felicity may refer to:

• Felicity of Rome (c. 101 - 165), saint numbered among the Christian martyrs
• Perpetua and Felicity, martyred at Carthage

• High-altitude flight
• High-altitude flying
• High altitude headache
• High-altitude hypoxia
• High altitude invertebrates
• High-altitude long endurance
• High-Altitude Long Endurance
• High altitude mammals
• High altitude plants
• High-altitude platform
• High altitude platform station
• High Altitude Pseudo-Satellite
• High Altitude Pseudo Satellite
• High alumina cement
• High-alumina cement
• High Ambition Coalition
• Higham Blockhouse
• Higham Ferrers Pits
• Higham (Kent) railway station
• Higham, Nicholas
• Higham on the Hill railway station
• Higham's Building
• Highams building
• Highams buildings
• Higham's Buildings