Lanning is a surname. Notable people with the surname include:

• Andy Lanning, British comic book writer and artist
• Dave Lanning, English sports commentator
• Frank Lanning (1872–1945), American silent film actor
• Jim Lanning, American wrestler
• Joel Lanning (born 1994), American football player
• Johnny Lanning (1910–1989), baseball player
• Justin Lanning, British ice dancer
• Justin Lanning (musician), American singer-songwriter
• Lauren Lanning, American beauty queen
• Lorne Lanning, American game designer, writer, voice actor and animated film director
• Meg Lanning, Cricketer, former Australian women's cricket captain, currently captain of the Delhi Capitals franchise in Women's Premier League
• William M. Lanning (1849–1912), American Republican politician

• Alfred Lanning, a character in Isaac Asimov's Robot series