| State: | IA |
| Type: | IA |
| Route: | 137 |
| Map Custom: | yes |
| Map Notes: | Iowa 137 highlighted in red |
| Length Mi: | 14.526 |
| Established: | 1934 |
| Direction A: | South |
| Terminus A: | in Albia |
| Direction B: | North |
| Terminus B: | in Eddyville |
| Previous Type: | IA |
| Previous Route: | 136 |
| Next Type: | IA |
| Next Route: | 139 |
Iowa Highway 137 (Iowa 137) is a NaNadj=midNaNadj=mid state highway in southern Iowa. The route begins at Iowa 5 in Albia and ends at U.S. Highway 63 (US 63) and Iowa 163 in Eddyville. The highway was designated in the 1930s after US 63 was rerouted.
Iowa 137 begins at a Y intersection with Iowa 5 on the north side of Albia. From Albia, it travels north for 4miles before turning northeast towards Eddyville. Just NaNmiles south of Eddyville, the highway crosses the Des Moines River. The highway ends at an interchange with US 63 and Iowa 163 on Eddyville's southeast corner.
Iowa 137 was designated in 1934 to replace a segment of Iowa 59 that was not subsumed into US 63. Previously, US 63's northern end was in Des Moines, but it was shifted that year to follow Iowa 59 north of Oskaloosa. For 63 years, the route of Iowa 137 remained largely unchanged; it ran for 25miles between Albia and Oskaloosa. In 1997, US 63 was again rerouted, this time onto a new four-lane highway, between Ottumwa and Oskaloosa. The new US 63 highway was built along Iowa 137 and Iowa 23, north and south of Eddyville, respectively. Iowa 137 was truncated to its current extent when the expressway opened on July 16, 1997.