Lockleaze is an area and council ward in the northern suburbs of the city of Bristol, England, 3 miles (5 km) north of the city centre, south of Filton, east of Horfield and west of Frenchay.

Lockleaze is a residential area of social housing built on the western flank of Purdown on a north–south axis, that was initially separated from Horfield by the main Bristol to South Wales railway line.

It is an early example of 'Method Building' using pre-cast frame with pre-stressed floors and brick panel walling.

During World War II, an anti-aircraft gun emplacement, known locally as Purdown Purcy,[3] was located on the down, the ruins of which remain today.

Nearly all the roads in Lockleaze are named after painters, such as Constable, Gainsborough, Blake, Hogarth and Nash.

Lockleaze provided a backdrop in the 1962 film Some People directed by Clive Donner, starring Kenneth More, Angela Douglas and Ray Brooks.

Lockleaze was also the setting for the series finale of BBC Three's 2016 drama miniseries Thirteen, starring Jodie Comer.