Voltaggio

{{Infobox Italian comune

| name = Voltaggio

| official_name = Comune di Voltaggio

| native_name ={{native name|lij|Ottaggio}}

| image_skyline = Voltaggio - Panorama.jpg

| imagesize =

| image_alt =

| image_caption =

| image_shield = Voltaggio (AL)-Stemma.png

| shield_alt =

| image_map =

| map_alt =

| map_caption =

| pushpin_label_position =

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| coordinates = {{coord|44|37|N|8|51|E|type:city(769)_region:IT|display=inline,title}}

| coordinates_footnotes =

| region = Piedmont

| province = Alessandria (AL)

| frazioni = Molini di Voltaggio

| mayor_party =

| mayor = Giuseppe Benasso

| area_footnotes =

| area_total_km2 = 51.3

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

| population_total = 761

| population_as_of = 31 December 2006

| pop_density_footnotes =

| population_demonym = Voltaggini

| elevation_footnotes =

| elevation_m = 342

| twin1 =

| twin1_country =

|istat=| saint = St. Giovanni Battista de Rossi

| day = 24 June

| postal_code = 15060

| area_code = 010

| website =

| footnotes =

}}

Voltaggio (Ottaggio in Ligurian) is a comune (municipality) in the Province of Alessandria in the Italian region Piedmont, located about {{convert|100|km|mi}} southeast of Turin and about {{convert|40|km|mi}} southeast of Alessandria.

Located there is a Roman bridge on the Lemme stream.

See also