D20

• 152 mm gun-howitzer D-20
• 20-sided die
• 2020 Democratic National Convention
• Aero Synergie Jodel D20
• Arriflex D-20
• Chevrolet D-20
• D20 road (Croatia)
• Dimension 20
• Dublin 20
• H Street Line
• Heavy water
• Institut Laue–Langevin
• NER Class R
• Queen's Gambit Accepted
• Roland D-50
• Senova D20
• Soloviev D-20