Castellarano

{{Infobox Italian comune

| name = Castellarano

| official_name = Comune di Castellarano

| native_name =

| image_skyline = Rocchetta Castellarano.jpg

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| image_shield = Castellarano-Stemma.svg

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| coordinates = {{coord|44|34|N|10|47|E|type:city(13,407)_region:IT|display=inline,title}}

| coordinates_footnotes =

| region = Emilia-Romagna

| province = Reggio Emilia (RE)

| frazioni = Ca' de Grimaldi, Ca' de Ravazzini, Cadiroggio, Case Ferri, Castello La Croce, Farneto di Sotto, Le Ville, Montebabbio, Pradivia, Roteglia, Scuole, Telarolo, San Valentino, Tressano, Ca De Fi,

| mayor_party =

| mayor = Giorgio Zanni

| area_footnotes =

| area_total_km2 = 58.06

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

| population_total = 15326

| population_as_of = 31 December 2017

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| population_demonym = Castellaranesi

| elevation_footnotes =

| elevation_m = 149

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| postal_code = 42014

| area_code = 0536

| website = {{official website|http://www.comune.castellarano.re.it/}}

| footnotes =

}}

Castellarano (Reggiano: {{lang|egl|Castlarân}}) is a comune (municipality) in the Province of Reggio Emilia in the Italian region Emilia-Romagna, located about {{convert|45|km|mi}} west of Bologna and about {{convert|20|km|mi}} southeast of Reggio Emilia.

Castellarano borders the following municipalities: Baiso, Casalgrande, Prignano sulla Secchia, Sassuolo, Scandiano, Viano.