Piz Costainas

{{short description|Mountain in Switzerland}}

{{Infobox mountain

| name = Piz Costainas

| other_name = Furkelspitz

| photo =

| photo_caption =

| elevation_m = 3004

| elevation_ref =

| prominence_m = 199

| prominence_ref = Swisstopo maps

| parent_peak = Piz Cotschen

| map = Alps

| map_caption = Location in the Alps

| location = South Tyrol, Italy, Graubünden, Switzerland

| range = Ortler Alps

| coordinates = {{coord|46|33|46|N|10|28|25|E|type:mountain_region:CH_scale:100000|format=dms|display=inline,title}}

| range_coordinates =

| first_ascent =

| easiest_route =

}}

Piz Costainas (also known as Furkelspitz) is a mountain of the Ortler Alps, straddling the Swiss-Italian border between Graubünden and South Tyrol. It is the easternmost mountain rising above 3,000 metres in Switzerland.