Ischia di Castro

{{Infobox Italian comune

| name = Ischia di Castro

| official_name = Comune di Ischia di Castro

| native_name =

| image_skyline =

| imagesize =

| image_alt =

| image_caption =

| image_shield = Ischia di Castro-Stemma.png

| shield_alt =

| image_map =

| map_alt =

| map_caption =

| pushpin_label_position =

| pushpin_map_alt =

| coordinates = {{coord|42|32|N|11|45|E|type:city(2,467)_region:IT|display=inline}}

| coordinates_footnotes =

| region = Lazio

| province = Viterbo (VT)

| frazioni =

| mayor_party =

| mayor = Salvatore Serra

| area_footnotes =

| area_total_km2 = 104.9

| population_footnotes =

| population_total = 2444

| population_as_of = 2008All demographics and other statistics: Italian statistical institute Istat.

| pop_density_footnotes =

| population_demonym = Ischiani

| elevation_footnotes =

| elevation_m = 384

| twin1 =

| twin1_country =

| saint =

| day =

| postal_code = 01010

| area_code = 0761

| website =

| footnotes =

}}

Ischia di Castro is a {{lang|it|comune}} (municipality) in the Province of Viterbo in the Italian region of Latium, located about {{convert|90|km|mi}} northwest of Rome and about {{convert|30|km|mi}} northwest of Viterbo.

Ischia di Castro borders the following municipalities: Canino, Cellere, Farnese, Manciano, Pitigliano, Valentano.

It takes its name from the nearby Castro, a town destroyed by Papal forces in the 17th century. The town is home to the Ducal Palace, or Rocca, to whose project collaborated Antonio da Sangallo the Younger (also designer's of Castro's walls before its destruction). It was once a palace of the Farnese family.

{{Further|Rocca di Ischia di Castro}}