Lastra a Signa

{{Infobox Italian comune

| name = Lastra a Signa

| official_name = Comune di Lastra a Signa

| native_name =

| image_skyline = Mura lastra asigna.jpg

| imagesize =

| image_alt =

| image_caption = Walls of Lastra a Signa

| image_shield = Lastra a Signa-Stemma.png

| shield_alt =

| shield_size = 50px

| image_map =

| map_alt =

| map_caption =

| pushpin_label_position =

| pushpin_map_alt =

| coordinates = {{coord|43|46|N|11|6|E|type:city(18,531)_region:IT|display=inline}}

| coordinates_footnotes =

| region = Tuscany

| metropolitan_city = Florence (FI)

| frazioni = Belfiore, Bracciatica, Brucianesi, Calcinaia, Carcheri, Ginestra Fiorentina, Inno, La Lisca, La Luna, Lecceto, Malmantile, Marliano, Ponte a Signa, Ponte Torto, Porto di Mezzo, Quattro Strade, San Martino a Gangalandi, San Romolo, Sant'Ilario a Settimo, Stagno, Val di Rose.

| mayor_party =

| mayor = Angela Bagni

| area_footnotes =

| area_total_km2 = 43.1

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

| population_total = 20252

| population_as_of = 31 August 2017

| pop_density_footnotes =

| population_demonym = Lastrigiani

| elevation_footnotes =

| elevation_m = 36

| twin1 =

| twin1_country =

| saint = St. Martin of Tours

| day = November 11

| postal_code = 50055

| area_code = 055

| website = {{official website|http://www.comune.lastra-a-signa.fi.it/}}

| footnotes =

}}

Lastra a Signa is a comune (municipality) in the metropolitan city of Florence in the Italian region Tuscany, located about {{convert|12|km|mi|0}} west of Florence.