McClung is a surname. Notable people with the surname include:
A. Colin McClung, agricultural scientist
Alexander Keith McClung (1811–1855), diplomat
Charles McClung McGhee (1828–1907), railroad tycoon and financier
Charles McClung (1761–1835), politician, and surveyor
Clarence Erwin McClung (1870–1946), biologist
John & Emery McClung, musicians
John McClung (1935–2004), historian and jurist
Kiel McClung (born 1985), soccer player
Lee McClung (1870–1914), football player and Treasurer of the United States
Matt McClung, football coach
Megan McClung (1972–2006), military officer
Nellie McClung (1873–1951), feminist, politician, and social activist
Patrick McClung, special effects artist
Seth McClung (born 1981), baseballer
Tom McClung (born 1957), jazz pianist
William McClung (1758–1811), judge
Willie McClung, football player