| Juan Muguerza | |
| Nationality: | Spanish |
| Sport: | Middle-distance running |
| Event: | 1500 metres |
| Birth Date: | 6 May 1900 |
Juan Muguerza Sasieta (6 May 1900 - 5 May 1937) was a Spanish middle-distance runner.[1] He competed in the men's 1500 metres at the 1920 Summer Olympics.[2]
Muguerza was a multiple-time national champion. He was killed in 1937 during the battle of Mungia in the Spanish Civil War. The Juan Muguerza Cross-Country annual cross country running race is named in his honor.[3]