Lanyon is a surname which originates from the hamlet of Lanyon (Madron), Cornwall, and may refer to:
Charles Lanyon (1813−1889), English architect George Lanyon Hacker (born 1928), English Suffragan Bishop of Penrith Ellen Lanyon (1926–2013), American painter and printmaker Hastie Lanyon, a fictional character in Strange Case of Dr Jekyll and Mr Hyde John Lanyon Whiting (1851–1922), Canadian lawyer and politician Karen Lanyon, Australian senior career officer of the Department of Foreign Affairs and Trade Mike Lanyon (born 1951), former Australian rules footballer Owen Lanyon (1842−1887), British colonial administrator Peter Lanyon (1918−1964), Cornish painter Ted Lanyon (1939–2008), Canadian retired professional ice hockey player Walter C. Lanyon (1887−1967), English religious writer Wesley E. Lanyon (1926–2017), American ornithologist and museum curator William Carlton Lanyon Dawe, generally known as Carlton Dawe (1865–1935), Australian author William James Lanyon Smith (1922–2018), New Zealand naval officer
Places In Antarctica Lanyon Peak, a sharp rock peak in Victoria Land Mount Lanyon, a large mountain in the Prince Charles Mountains
In Australia Lanyon High School, a school in Canberra Lanyon Homestead, an historic site in Canberra Lanyon Valley, a suburb of Canberra
In the United Kingdom Lanyon (Madron), a farm and hamlet in Cornwall Lanyon Place railway station, a railway station in Belfast Lanyon Quoit, a dolmen in Cornwall West Lanyon Quoit, a dolmen in Cornwall Lanyon Manor, a manor house in Gwinear Cornwall
In the United States of America Lanyon, Iowa, an unincorporated area
Arts and entertainment The Spectre of Lanyon Moor, a Big Finish Productions audio drama
Companies Lanyon, Lynn and Lanyon, a 19th-century firm of Civil Engineers and Architects in Ireland Lanyon Solutions, a software company