Castelfidardo

{{Infobox Italian comune

| name = Castelfidardo

| official_name = Comune di Castelfidardo

| native_name =

| image_skyline = Castelfidardo z03.JPG

| imagesize =

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| image_caption =

| image_shield = Castelfidardo-Stemma.svg

| shield_alt =

| image_map =

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| coordinates = {{coord|43|27|47|N|13|33|00|E|display=inline,title}}

| coordinates_footnotes =

| region = Marche

| province = Ancona (AN)

| frazioni = Acquaviva, Campanari, Cerretano, Crocette, Figuretta, Fornaci, Sant'Agostino, San Rocchetto

| mayor_party =

| mayor = Roberto Ascani

| area_footnotes =

| area_total_km2 = 32

| population_footnotes =

| population_total = 18601

| population_as_of = 31 December 2017

| pop_density_footnotes =

| population_demonym = Fidardensi

| elevation_footnotes =

| elevation_m = 215

| twin1 =

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| saint = St. Victor

| day = May 14

| postal_code = 60022

| area_code = 071

| website = {{official website|http://www.comune.castelfidardo.an.it/}}

| footnotes =

}}

Castelfidardo (Marchigiano: Castello) is a town and comune in the province of Ancona, in the Marche region of central-eastern Italy.

It is remembered for a Piedmontese victory over an army composed of foreign volunteers defending the Papal States, on September 18, 1860. The town's Museum of the Risorgimento, in the palazzo Mordini, commemorates the battle and places it in the wider context of the Risorgimento as a whole. It houses artifacts and documents of the period, including around 130 loans from private collections or other museums. In addition, Castelfidardo is home to a number of Renaissance-era buildings, including 'il Palombarone` a 1580 construction which underwent extensive renovations in the early 21st century.{{cite web|title=Il Palombarone|url=http://www.turismocastelfidardo.it/03_Le%20nostre%20bellezze/04_La_Villa_e_Palombarone/index.htm|website=Comune di Castelfidardo Villa Pace e Palombarone|publisher=Comune di Castelfidardo|access-date=20 May 2017}}{{Dead link|date=November 2018 |bot=InternetArchiveBot |fix-attempted=yes }}