PCH may refer to:
==Places== Pacific Coast Highway (California), segments of California State Route 1 Palacios Airport (IATA code PCH) in Gracias a Dios Department, Honduras Parchim (district) (vehicle registration code: PCH), a former district in Germany Portcullis House, a parliamentary building in London
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).