Custonaci

{{Expand Italian|date=January 2022|topic=geo}}

{{Infobox Italian comune

| name = Custonaci

| official_name = Comune di Custonaci

| native_name = Custunaci

| image_skyline = Custonaci-pan.jpg

| imagesize =

| image_alt =

| image_caption =

| image_shield = Custonaci-Stemma.png

| shield_alt =

| image_map =

| map_alt =

| map_caption =

| pushpin_label_position =

| pushpin_map_alt =

| coordinates = {{coord|38|5|N|12|51|E|region:IT_type:city(5013)|display=inline,title}}

| coordinates_footnotes =

| region = {{RegioneIT|sigla=SIC}}

| province = {{ProvinciaIT (short form)|sigla=TP}} (TP)

| frazioni = Assieni, Cornino, Purgatorio, Santa Lucia, Sperone, Baglio Messina, Frassino, Scurati

| mayor_party =

| mayor = Giuseppe Bica

| area_footnotes =

| area_total_km2 = 69.9

| population_footnotes = Population data from ISTAT

| population_total = 5561

| population_as_of = 31 March 2018

| pop_density_footnotes =

| population_demonym = Custonacesi, Custonacioti (Sicilian)

| elevation_footnotes =

| elevation_m = 186

| twin1 =

| twin1_country =

| saint = Holy Mary of Custonaci

| day = Last Wednesday in August

| postal_code = 91015

| area_code = 0923

| website = {{official website|http://www.comune.custonaci.tp.it/}}

| footnotes =

}}

Custonaci (Sicilian: Custunaci) is a town and comune in the province of Trapani, north-Western Sicily, southern Italy.