LP3 or lp3 may stand for:

• Lista Przebojów Programu Trzeciego, the longest-running Polish hit songs chart
• American Football (2019 album), The third album by American Football, also known as American Football (LP3)
• LP3 (Ratatat album), an album by Ratatat
• LP3 (Lady Pank album), an album by Lady Pank
• Lost Planet 3, a video game

• Sailing at the 1948 Summer Olympics - Firefly
• Sailing at the 1948 Summer Olympics - Star
• Sailing at the 1948 Summer Olympics - Swallow
• Sailing at the 1948 Summer Olympics – 6 metre class
• Sailing at the 1948 Summer Olympics – Dragon class
• Sailing at the 1951 Pan American Games
• Sailing at the 1952 Summer Olympics - Finn
• Sailing at the 1952 Summer Olympics - Star
• Sailing at the 1952 Summer Olympics – 5.5 metre class
• Sailing at the 1952 Summer Olympics – 6 metre class
• Sailing at the 1952 Summer Olympics – Dragon class
• Sailing at the 1956 Summer Olympics - 12 Square meter Sharpie
• Sailing at the 1956 Summer Olympics - 5.5 Metre
• Sailing at the 1956 Summer Olympics - Finn
• Sailing at the 1956 Summer Olympics - Star
• Sailing at the 1956 Summer Olympics – 12 m2 Sharpie
• Sailing at the 1956 Summer Olympics – 12 Square meter Sharpie
• Sailing at the 1960 Summer Olympics - 5.5 Metre
• Sailing at the 1960 Summer Olympics - Finn
• Sailing at the 1960 Summer Olympics - Flying Dutchman
• Sailing at the 1960 Summer Olympics – 5.5 Metre class
• Sailing at the 1964 Summer Olympics - 5.5 Metre
• Sailing at the 1964 Summer Olympics - Finn
• Sailing at the 1964 Summer Olympics - Flying Dutchman
• Sailing at the 1968 Summer Olympics - 5.5 Metre