M-151, was formerly the designation of two different state trunkline highways in the US state of Michigan.
- M-151 was the original designation of US Highway 12 (US 12) between Niles and Union, Michigan between 1931 and 1935; and
- M-151 was the original designation of US 223 in Whiteford Township between Memorial Highway and the US 23 freeway between 1935 and 1977.
This article includes a list of roads, streets, highways, or other routes that are associated with the same title.
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←  M-150 | MI | →  M-152 | ||