The son of a wine merchant, André Dignimont first studied at the Collège de Oratoriens in the small town of Juilly before completing his language studies in England at Craven College in Beckenham, Kent. He would return to France in 1911 and would spend the next seven years in the military. At the end of World War One he moved to Paris to become a student of Tony Robert-Fleury at the Académie Julian. Settling in Montmartre, he led a Bohemian life in the company of classmates and friends, including Jean-Gabriel Domergue, Roger de la Fresnaye, Louis Marcoussis, Robert Lotiron and André Warnod.
His career spanned more than four decades, during which time he primarily painted portraiture, genre pieces and the female nude. Finding time for theatrical design and book illustration enabled him to work in the company of some prominent writers including Colette, Francis Carco and Pierre Mac Orlan.
It was later that André Dignimont began to take an interest in landscape painting as a result of encouragement in this by André Dunoyer de Segonzac.
André Dignimont died in Paris in 1965, aged 73 years. His grave, in the Montparnasse cemetery is decorated with a bronze medallion with a portrait in relief, signed by the sculptor Paul Belmondo.