Lein may refer to:
==People with that name== Allen Lein (1913–2003), American endocrinologist and medical school professor Anatoly Lein (1931–2018), Soviet-born American chess Grandmaster Lars O. Lein (1874–1958), American farmer and politician Mahide Lein (born 1949), German LGBTQ+ activist Simonetta Lein (born 1983), Italian-American columnist and model
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).