Giovanni Frangi was born in 1959 in Milan.
After having received a diploma from the Brera Fine Arts Academy, he began his exhibition career in 1983 holding his first solo show at La Bussola, Turin. In 1989 for the first time Frangi works are presented abroad at the Galerie du Banneret in Bern. Then Barcelona in 1989, New Orleans in 1993, Carmel in 1994, Lausanne in 1995, Hong Kong in 1997, Marseille in 1998, San Francisco in 2000, Los Angeles in 2001, Beijing in 2005, Hanoi in 2007 and Frankfurt in 2008.
In 1997 an anthological exhibition at Palazzo Sarcinelli in Conegliano summarizes the work done by Frangi around the dominant theme of the landscape. In the same year he won the XII Quadrennial prize and exhibited at the Cenacolo hall of Montecitorio in Rome the series La fuga di Renzo, the story of a trip to the lagoon. It starts from a port at sunset and arrives in the middle of the night in front of a moonlit industrial plant. For the first time Frangi does not make single canvases but a unitary project. It is the beginning of the collaboration with Giovanni Agosti.
In 1999 he set up a forest consisting of 13 canvases at the Palazzo delle Stelline in Milan: Il richiamo della foresta.The paintings are supported on the ground by iron supports. Theatrical scenes in which the spectator ventures, breathing in the changing seasons up to a huge snowy scenario. Unexpectedly at the exit you look towards the backs of the canvases, the final reversal of a naturalist illusion. In the same year, Cecov's Uncle Vanjadebuted at the Venice Biennale under the direction of Federico Tiezzi. The curtain - once again a wood - is by Giovanni Frangi.
In 2008 Feltrinelli publishes Giovanni Frangi alle prese con la natura, a collection of essays dedicated to his work by Giovanni Agosti.
In 2011 he is invited to take part in 54th International Exposition of Arts of the Venice Biennale in the Italian Pavilion and exhibited in Milan at the Museo Diocesano.
In 2016, a series of works on paper was presented in September, at the Istituto Centrale per la Grafica in Rome.