Postua

{{Infobox Italian comune

| name = Postua

| official_name = Comune di Postua

| native_name =

| image_skyline = Pan postua primo piano ponte strona.jpg

| imagesize =

| image_alt =

| image_caption = The village behind the old bridge on the Strona

| image_shield =

| shield_alt =

| image_map =

| map_alt =

| map_caption =

| pushpin_label_position =

| pushpin_map_alt =

| coordinates = {{coord|45|43|N|8|14|E|type:city(568)_region:IT|display=inline,title}}

| coordinates_footnotes =

| region = Piedmont

| province = Vercelli (VC)

| frazioni =

| mayor_party =

| mayor = Maria Cristina Patrosso

| area_footnotes =

| area_total_km2 = 16.18

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

| population_total = 590

| population_as_of = 31 December 2010

| pop_density_footnotes =

| population_demonym = Postuesi

| elevation_footnotes =

| elevation_m = 459

| twin1 =

| twin1_country =

| saint =

| day =

| postal_code = 13010

| area_code = 015

| website =

| footnotes =

}}

Postua is a comune (municipality) in the Province of Vercelli in the Italian region Piedmont, located about {{convert|80|km|mi}} northeast of Turin and about {{convert|45|km|mi}} northwest of Vercelli.