Sikh war may refer to:
- Early Mughal–Sikh wars (1621–1658)
- Mughal–Sikh wars (1621–1788)
- Hill States–Sikh wars (1682–1812)
- Afghan–Sikh wars (1748–1839)
- Katoch–Sikh war (1801)
- Nepal-Sikh war (1809)
- Sino-Sikh war (1841–1842)
- First Anglo-Sikh war (1845–1846)
- Second Anglo-Sikh war (1848–1849)