Leightonfield is an industrial locality in south-western Sydney, in the state of New South Wales, Australia.

[1] Leightonfield was the site of a munitions factory, where in the period of World War II, more than 3,000 people worked at the plant for the development of military weapons.

Currently, it endures as an industrial zone within part of Villawood and is accessible only by train within its railway station.

Leightonfield is exclusively an industrial estate within Villawood that features dozens of warehouses, workshops and factories.

It is a prominent manufacturing hub in western Sydney.