Leser is a surname. Notable people with the surname include:
Benno Max Leser-Lasario, Austrian physician, singer and breathing instructor C. E. V. Leser (1915–1998), German-born econometrician Edmund Leser (1828–1916), German surgeon (Leser–Trélat sign) Emanuel Leser (1849–1914), German economist Ludwig Leser (1890–1946), Austrian politician Norbert Leser (1933–2014), Austrian social philosopher Oscar Leser (Leser v. Garnett, 1922) Paul Leser (1899–1984), German-born American ethnologist Tina Leser (1910–1986), American fashion designer