Type 5 may refer to:
- Type 5 cannon, a Japanese World War II autocannon for aircraft
- Type 5 15 cm AA Gun, Japanese anti-aircraft gun
- Type 5 45 mm AT Recoilless Gun
- Type 5 75 mm tank gun
- Type 5 Chi-Ri medium tank, a Japanese tank
- Type 5 Ke-Ho light tank, a Japanese tank
- Type 5 Rifle, alternative name for Type 4 rifle
- Type 5 To-Ku, an amphibious tank
- CGMP specific phosphodiesterase type 5
- Hyper IgM Syndrome Type 5
- PDE5 inhibitor, a vasodilator drug
- Peugeot Type 5
- Dietrich-Bugatti, type 5 automobile
- Kawasaki Ki-100, (Army Type 5 Fighter) a Japanese land based fighter aircraft of World War II
- Type 5, a British Rail power classification for diesel locomotives