diff --git a/django/contrib/gis/db/backends/mysql/operations.py b/django/contrib/gis/db/backends/mysql/operations.py
index de64bc95db..c31504c40e 100644
--- a/django/contrib/gis/db/backends/mysql/operations.py
+++ b/django/contrib/gis/db/backends/mysql/operations.py
@@ -16,7 +16,6 @@ class MySQLOperations(BaseSpatialOperations, DatabaseOperations):
     from_text = 'GeomFromText'
 
     Adapter = WKTAdapter
-    Adaptor = Adapter  # Backwards-compatibility alias.
 
     gis_operators = {
         'bbcontains': SpatialOperator(func='MBRContains'),  # For consistency w/PostGIS API
diff --git a/django/contrib/gis/db/backends/oracle/operations.py b/django/contrib/gis/db/backends/oracle/operations.py
index 722ef9f29b..2404cf9bc4 100644
--- a/django/contrib/gis/db/backends/oracle/operations.py
+++ b/django/contrib/gis/db/backends/oracle/operations.py
@@ -60,7 +60,6 @@ class OracleOperations(BaseSpatialOperations, DatabaseOperations):
     disallowed_aggregates = (aggregates.Collect, aggregates.Extent3D, aggregates.MakeLine)
 
     Adapter = OracleSpatialAdapter
-    Adaptor = Adapter  # Backwards-compatibility alias.
 
     area = 'SDO_GEOM.SDO_AREA'
     gml = 'SDO_UTIL.TO_GMLGEOMETRY'
diff --git a/django/contrib/gis/db/backends/postgis/operations.py b/django/contrib/gis/db/backends/postgis/operations.py
index ed9d5b10fb..8c630f5ca0 100644
--- a/django/contrib/gis/db/backends/postgis/operations.py
+++ b/django/contrib/gis/db/backends/postgis/operations.py
@@ -56,7 +56,6 @@ class PostGISOperations(BaseSpatialOperations, DatabaseOperations):
     version_regex = re.compile(r'^(?P<major>\d)\.(?P<minor1>\d)\.(?P<minor2>\d+)')
 
     Adapter = PostGISAdapter
-    Adaptor = Adapter  # Backwards-compatibility alias.
 
     gis_operators = {
         'bbcontains': PostGISOperator(op='~'),
diff --git a/django/contrib/gis/db/backends/spatialite/operations.py b/django/contrib/gis/db/backends/spatialite/operations.py
index f5884a4c7b..f4aef508b5 100644
--- a/django/contrib/gis/db/backends/spatialite/operations.py
+++ b/django/contrib/gis/db/backends/spatialite/operations.py
@@ -25,7 +25,6 @@ class SpatiaLiteOperations(BaseSpatialOperations, DatabaseOperations):
     version_regex = re.compile(r'^(?P<major>\d)\.(?P<minor1>\d)\.(?P<minor2>\d+)')
 
     Adapter = SpatiaLiteAdapter
-    Adaptor = Adapter  # Backwards-compatibility alias.
 
     area = 'Area'
     centroid = 'Centroid'