The Lincoln Street Ventilation Stack is a prominent landmark in Highgate, a suburb of Perth, Western Australia.

Built by the Metropolitan Water Supply, Sewerage and Drainage Department in 1935 as a sewer vent, it is of brick construction rendered in Art Deco style and stands 38 metres (125 ft) tall, making it the second tallest sewer vent in Australia (after a 40-metre (130 ft) structure in Sydney).

[1][2] The vent was intended to safely discharge acidic gas with the potential to damage Perth's sewer network and was hence built on top of Highgate Hill above a high point in the system.

The move and the tower's new function were kept secret – initially to protect against Japanese air raids during World War II – and weren't revealed until 1956.

The Lincoln Street Vent is listed with the National Trust of Australia and the State Register of Heritage Places.