Alfonso Angelini (1918–1995) was an Italian professional golfer and instructor after World War II.
Angelini was runner-up at the Italian Open in 1950 (lost playoff to Ugo Grappasonni), 1952, 1958 and 1959.
He won his first international tournament when he beat Gerard de Wit in the playoff at the Dutch Open in 1955.
He also won the Swiss Open in 1957 and 1966 and the Portuguese Open in 1962 and 1966.
In 1968 he played the World Cup in Rome with Roberto Bernardini, finishing third behind Canada and the United States.
He played The Open Championship six times, finishing 12th in 1954.
Angelini lost to Ken Bousfield in a playoff for the 1972 PGA Seniors Championship at Longniddry, Scotland.
He took a bogey 5 at the first extra hole to Bousfield's par 4.Angelini and Grappasonni were teaching pros at the Golf Club Villa d'Este.
Together with Aldo Casera they founded the Professional Golfer's Association of Italy in 1962.
The three men were known as the "three musketeers".