Luis Humberto Crosthwaite (born 1962 in Tijuana) is a writer, editor, and journalist whose work has appeared in a variety of international venues.

His fiction works have garnered critical attention for his ability to express the complexities of living on the US/Mexico border region.

Crosthwaite spent most of his life in Tijuana before moving to San Diego, where he worked at The San Diego Union-Tribune newspaper as columnist and editor.

Currently,[when?]

Crosthwaite lives in Tijuana.