Northfields is an area in Ealing, west London. It is centred on Northfield Avenue, a shopping street of mostly independent shops and restaurants. It lies partially in the Ealing W5 and partially in west Ealing's W13 postcode. It lies in the southwest corner of Ealing.

From the 14th century this area was part of the manor of Coldhall, or West Ealing. Great and Little Northfields were two large fields in the late Middle Ages, lying in the extreme west of Ealing parish. By the mid-17th century, Northfields Road as it was first called, was constructed to connect Little Ealing (now South Ealing) to the road to Uxbridge (the current Uxbridge Road running from Shepherds Bush to Uxbridge). Yet the area remained rural, covered in apple orchards into the late nineteenth century.

Today the area is served by the Piccadilly line from Northfields tube station designed by architect Charles Holden and by the E2 and E3 bus services running to Greenford, Ealing, Brentford, Hanwell, Acton and Chiswick, and the N11, a night bus to Central London. Northfields is a middle-class area, with high levels of education, employment and home ownership.[1] It is home to three local authority primary schools, Little Ealing Primary School, Fielding Primary School and Mount Carmel Catholic Primary School.