| Macauley Smith | |
| Full Name: | John Macauley Letchworth Smith |
| Nationality: | American |
| Sport: | Long-distance running |
| Event: | 5000 metres |
| Birth Date: | 10 April 1905 |
| Birth Place: | Louisville, Kentucky, United States |
John Macauley Letchworth Smith (April 10, 1905 - August 25, 1993) was an American long-distance runner. He competed in the men's 5000 metres at the 1928 Summer Olympics.[1]