Sir William Heerlein Lindley (30 January 1853, in Hamburg – 30 December 1917, in London[1]) was a British civil engineer.

One of three sons of the famous British engineer William Lindley,[2] WH Lindley worked together with his father on a number of projects and was a respected engineer in his own right.

Between 1881 and 1889 he oversaw the construction of Warsaw waterworks, designed by his father[3] in 1876–1878.

Between 1897 and 1898 he worked on the project for a water-supply system for Iași, which he linked, via an underground cast-iron aqueduct, to an aquifer located 103 kilometres away, in Timișești, Neamț County; Lindley's project was materialised in 1911, and the water system is still used.

He also coordinated the project for Baku's water supply system, working from 1899 up until his death in 1917.