John Beauchamp or John de Beauchamp may refer to:
- John de Beauchamp of Fifield, Member of Parliament for Essex, 1290
- John de Beauchamp, 2nd Baron Beauchamp (first creation) of Somerset (1304–1343)
- John de Beauchamp, 1st Baron Beauchamp (second creation) (c. 1316–1360), also known as 1st Baron Beauchamp de Warwick
- John de Beauchamp, 3rd Baron Beauchamp (1329–1361), also known as 3rd Baron Beauchamp de Somerset
- John de Beauchamp, 1st Baron Beauchamp (fourth creation) (died 1388), administrator and landowner, also known as 1st Baron Beauchamp of Kidderminster
- John Beauchamp (died 1420), MP for Worcestershire 1401, 1404, 1414
- John Beauchamp, 1st Baron Beauchamp (fifth creation) (c. 1400–1475), nobleman and administrator
- John Beauchamp (Plymouth Company) (1592–1655), backer of the Plymouth Company