Moor Park is a London Underground station in the Three Rivers district of Hertfordshire, serving those living on the Moor Park estate, and also on the neighbouring Eastbury and South Oxhey estates.

Shortly after in 1899, Great Central Railway trains also passed here, following the Metropolitan via Verney Junction.

The lines were electrified in 1925 when the Watford branch was opened and electric-hauled trains passed to Rickmansworth to exchange the traction for steam.

British Rail and Network SouthEast trains stopped calling at Moor Park from 1993.

At all other times, and all day at weekends, trains depart from platforms 3 and 4, providing all station or semi-fast services to Baker Street or Aldgate going southbound, and to Watford, Amersham or Chesham northbound.