Bigach crater

{{Infobox terrestrial impact site

| name = Bigach crater

| other_name =

| photo = Bigach Impact Crater, Kazakhstan.JPG

| photo_size =

| photo_alt =

| photo_caption = Bigach impact crater (image centre)

| location =

| map = Kazakhstan

| map_alt =

| map_caption = Location of Bigach impact crater in Kazakhstan

| map_size =

| label_position =

| coordinates = {{coord|48|36|00|N|82|0|00|E|format=dms|display=inline,title}}

| coordinates_ref =

| confidence =

| diameter = {{convert|8|km|sp=us}}

| age = 5 ± 3 million years

| exposed =

| drilled =

| bolide =

| topo =

| access =

| country = Kazakhstan

| state =

| province =

| district =

| municipality =

}}

Bigach (from {{langx|kk|қиғаш}}, Qiğaş – curved) is an impact crater in Kazakhstan.{{Cite Earth Impact DB | name = Bigach | accessdate = 2008-12-30 }}

It is 8 km in diameter and the age is estimated to be 5 ± 3 million years (Pliocene or Miocene). The crater is exposed at the surface.