Colleretto Giacosa

{{Infobox Italian comune

| name = Colleretto Giacosa

| official_name = Comune di Colleretto Giacosa

| native_name =

| image_skyline = Colleretto_Giacosa_Peasaggio_02.JPG

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| coordinates = {{coord|45|26|N|7|47|E|type:city(624)_region:IT|display=inline}}

| coordinates_footnotes =

| region = Piedmont

| metropolitan_city = Turin (TO)

| frazioni = Campana

| mayor_party =

| mayor = Ernesto Marco

| area_footnotes =

| area_total_km2 = 4.59

| population_footnotes = All demographics and other statistics: Italian statistical institute Istat.

| population_total = 586

| population_as_of = 31 August 2021

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| population_demonym = Collerettese(i)

| elevation_footnotes =

| elevation_m = 280

| twin1 =

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| saint = San Felice

| day = Third sunday of October

| postal_code = 10010

| area_code = 0125

| website =

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Colleretto Giacosa is a comune (municipality) in the Metropolitan City of Turin in the Italian region Piedmont, located about {{convert|40|km|mi}} north of Turin.

Colleretto Giacosa borders the following municipalities: Samone, Loranzè, Pavone Canavese, Parella, and San Martino Canavese.

The poet, playwright and librettist Giuseppe Giacosa (1847 – 1906) was born in the then Colleretto Parella, the town changed its name after him.