Montecosaro

{{Infobox Italian comune

| name = Montecosaro

| official_name = Comune di Montecosaro

| native_name =

| image_skyline = Montecosaro.JPG

| imagesize =

| image_alt =

| image_caption = The old part of the town stands on a hill

| image_shield = Montecosaro-Stemma.png

| shield_alt =

| image_map =

| map_alt =

| map_caption =

| pushpin_label_position =

| pushpin_map_alt =

| coordinates = {{coord|43|19|N|13|38|E|type:city(5,435)_region:IT|display=inline}}

| coordinates_footnotes =

| region = Marche

| province = Macerata (MC)

| frazioni = Crocette-Molino, Montecosaro Scalo (formerly Borgo stazione)

| mayor_party =

| mayor = Reano Malaisi

| area_footnotes =

| area_total_km2 = 21.7

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

| population_total = 6826

| population_as_of = 31 December 2010

| pop_density_footnotes =

| population_demonym = Montecosaresi

| elevation_footnotes =

| elevation_m = 252

| twin1 =

| twin1_country =

| saint = St. Lawrence of Rome

| day = August 10

| postal_code = 62010

| area_code = 0733

| website = {{official website|http://www.comune.montecosaro.mc.it/}}

| footnotes =

}}

Montecosaro is a comune (municipality) in the Province of Macerata in the Italian region Marche, located about {{convert|35|km|mi}} southeast of Ancona and about {{convert|15|km|mi|0}} east of Macerata.

Montecosaro borders the following municipalities: Civitanova Marche, Montegranaro, Montelupone, Morrovalle, Potenza Picena, Sant'Elpidio a Mare. It is one of I Borghi più belli d'Italia ("The most beautiful villages of Italy").{{cite web|url=https://borghipiubelliditalia.it/marche/|title=Marche|access-date=1 August 2023|language=it}}

Among the religious buildings in the town are:

• Santa Maria a Pie’ di Chienti: church rebuilt in 1125 in Romanesque style.
• Sant'Agostino: Romanesque church rebuilt starting in 16th century.