Lacchiarella

{{Infobox Italian comune

| name = Lacchiarella

| official_name = Comune di Lacchiarella

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| coordinates = {{coord|45|19|N|9|08|E|type:city(7,542)_region:IT|display=inline}}

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| region = Lombardy

| metropolitan_city = Milan (MI)

| frazioni = Casirate Olona, Villamaggiore, Mettone

| mayor_party =

| mayor = Antonella Violi

| area_footnotes =

| area_total_km2 = 24.2

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

| population_total = 8970

| population_as_of = 30 November 2017

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| population_demonym = Lacchiarellesi, Ciarlaschi

| elevation_footnotes =

| elevation_m = 98

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| postal_code = 20084

| area_code = 02

| website = {{official website|http://www.comune.lacchiarella.mi.it}}

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Lacchiarella ({{langx|lmo|La Ciarella}} {{IPA|lmo|la tʃaˈrɛla|}}) is a comune (municipality) in the Metropolitan City of Milan in the Italian region Lombardy, located about {{convert|22|km|mi}} south of Milan.

Lacchiarella borders the following municipalities: Zibido San Giacomo, Pieve Emanuele, Basiglio, Binasco, Bornasco, Siziano, Casarile, Vidigulfo, Giussago.

It is served by Villamaggiore railway station.