Arcangelo Ianelli (São Paulo, July 18, 1922 — May 26, 2009) was a painter, sculptor and illustrator from Brazil, who was involved with an artistic group called Grupo Guanabara, along with Manabu Mabe (1924-1997), Yoshiya Takaoka (1909-1978) and Tikashi Fukushima (1920-2001).
His brother, Tomás Ianelli, was also a painter.
He was the father of the painter Rubens Ianelli and grandfather of the poet Mariana Ianelli.