Per

• Packed Encoding Rules
• Partial equivalence relation
• PeR (band)
• Penrhiwceiber railway station
• Per (film)
• Per (given name)
• Per (storm)
• Per capita
• Per sign
• Perambur railway station
• Period (gene)
• Perr (disambiguation)
• Pers (disambiguation)
• Perseus (constellation)
• Perth Airport
• Perthshire
• Peru
• Physics education research
• Player efficiency rating
• Price–earnings ratio
• Protein efficiency ratio
• Purr (disambiguation)
• Pér
• Rate (mathematics)