Telstra Tower (also known as Black Mountain Tower and formerly Telecom Tower) is a telecommunications tower and lookout that is situated above the summit of Black Mountain in Australia's capital city of Canberra. It is named after Australia's largest telecommunications company, Telstra Corporation. Rising 195.2 meters (640 ft) above the mountain summit, it is a landmark in Canberra and offers panoramic views of the city and its surrounding countryside from an indoor observation deck and two outdoor viewing platforms.

In April 1970, the Postmaster General (PMG) at the time commissioned the Commonwealth Department of Housing and Construction to carry out a feasibility study in relation to a tower on Black Mountain accommodating both communication services and facilities for visitors. The tower was to replace the microwave relay station on Red Hill and the television broadcast masts already on Black Mountain.

Black Mountain Tower was opened on 15 May 1980 by Prime Minister Malcolm Fraser. It was officially named Telecom Tower, and when the telecommunications company was rebranded in 1993, became Telstra Tower. Telstra Tower provides important communication facilities for Canberra along with both indoor and outdoor observation decks, a cafe and a gift shop.  Telstra Tower has become one of the most symbolic landmarks in Canberra and a major tourist attraction with a total of over six million visitors.

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