Isnardo da Chiampo (d. 19 March 1244) was an Italian Roman Catholic priest and professed member in the Order of Preachers. He studied in Bologna (where Dominic of Osma himself received him into his order) and in Milan before preaching in northern Italian cities such as Brescia and Bergamo following his ordination. He settled in Pavia in 1231 where he founded a convent and would remain there preaching against heretics until his death over a decade later.