Arnara

{{Infobox Italian comune

| name = Arnara

| official_name = Comune di Arnara

| native_name =

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| image_shield = Arnara-Stemma.gif

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| coordinates = {{coord|41|35|N|13|23|E|type:city(2,409)_region:IT|display=inline}}

| coordinates_footnotes =

| region = Lazio

| province = Frosinone (FR)

| frazioni = Colle Orso, Costa Grande, Sterparo

| mayor_party =

| mayor = Massimo Fiori

| area_footnotes =

| area_total_km2 = 12.29

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

| population_total = 2299

| population_as_of = 28 February 2017

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| elevation_footnotes =

| elevation_m = 250

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| saint = St. Sebastian

| day = January 20

| postal_code = 03020

| area_code = 0775

| website = {{official website|http://www.comune.arnara.fr.it/}}

| footnotes =

}}

Arnara is a comune (municipality) in the Province of Frosinone in the Italian region Lazio, located about {{convert|80|km|mi}} southeast of Rome and about {{convert|6|km|mi|0}} southeast of Frosinone.

Arnara borders the following municipalities: Ceccano, Frosinone, Pofi, Ripi, Torrice. Sights include the medieval castle.