Concini (also spelled with the prefix De) is a surname. Notable people with the name include:

Concini

• Bartolomeo Concini (1507–1578), Italian political figure and diplomat

• Concino Concini (1569–1617), Italian politician and a minister of Louis XIII of France

• Cosimo Concini (1570–1604), Italian diplomat serving the Grand Duchy of Tuscany

• Giovan Battista Concini (1532–1605), Italian politician and diplomat

de Concini

• Corrado de Concini (born 1949), Italian mathematician and professor

De Concini

• Ennio De Concini (1923–2008), Italian screenwriter and film director

DeConcini

• Dennis DeConcini (born 1937), American lawyer, philanthropist, politician and former U.S. senator from Arizona

• Evo Anton DeConcini (1901–1986), American judge who served as Attorney General of Arizona, and a justice of the Arizona Supreme Court

• John DeConcini (1918–1998), American labor union leader