Sir Lachlan Hector Charles Maclean of Duart and Morven, 12th Baronet, CVO, DL, (born 25 August 1942) is the 28th chief of Clan Maclean.

Lachlan Hector Charles Maclean was born on 25 August 1942, eldest son to Charles Lord Maclean and (Joan) Elizabeth Mann. He was educated at Eton. On 2 November 1966, he married Mary Helen Gordon (31 October 1943 - 30 December 2007), and the couple had several children. On the death of his father in 1990, he succeeded him as a Baronet of Nova Scotia and the Chief of the Name and Arms of Maclean. On 8 September 2010 he married Rosemary Matheson.

Adjutant, Royal Company of Archers.
Commissioned Deputy Lieutenant of Argyll and Bute (1993).
Commander of the Royal Victorian Order (1999).