The 1-year-old girl allegedly snatched by her own father was returned safely by a mystery man who showed up at the mother’s house early Monday, according to police and sources.

An unidentified man called the 22-year-old mother early Monday while she was at her home at 182nd Street and 3rd Avenue in The Bronx and told her he was outside with her daughter, police sources said.

The man, who was not the dad, handed over the child, then fled, the source said.

Kenneth Williams, 33, allegedly ran off with his daughter while visiting the girl and her mother Sunday — then loaded the baby girl into a Ford Econoline van with no license plate and drove off, police said.

Williams is still on the loose and being pursued by police, cops said.