M57 or M-57 may refer to:
==Transport== M-57 (Michigan highway), a state highway in Michigan M57 motorway, a motorway in England M57 (Cape Town), a Metropolitan Route in Cape Town, South Africa M57 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa M57, a New York City Bus route in Manhattan
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).