The suburb of Henley Brook takes its name from one of the earliest named areas in Western Australia. In March 1827, Captain Stirling was exploring the Swan River and when he reached the extremity of navigable water for their long boat, he made a close inspection of the country. Stirling named an area near Upper Swan "Henley Park" and this name was used as a property name in 1830 by W H Mackie and F C Irwin when they settled here. A brook flowing though the property was recorded as Henley Brook in 1842 and this name was approved as the suburb name in 1972.