diff --git a/python/cudf/cudf/core/_internals/aggregation.py b/python/cudf/cudf/core/_internals/aggregation.py
index fe8ea5a947a..1d21d34b1bf 100644
--- a/python/cudf/cudf/core/_internals/aggregation.py
+++ b/python/cudf/cudf/core/_internals/aggregation.py
@@ -29,11 +29,11 @@
 
 class Aggregation:
     def __init__(self, agg: plc.aggregation.Aggregation) -> None:
-        self.c_obj = agg
+        self.plc_obj = agg
 
     @property
     def kind(self) -> str:
-        name = self.c_obj.kind().name
+        name = self.plc_obj.kind().name
         return _agg_name_map.get(name, name)
 
     @classmethod
diff --git a/python/cudf/cudf/core/column/column.py b/python/cudf/cudf/core/column/column.py
index cccafaeba88..75b9070b53f 100644
--- a/python/cudf/cudf/core/column/column.py
+++ b/python/cudf/cudf/core/column/column.py
@@ -1605,7 +1605,7 @@ def scan(self, scan_op: str, inclusive: bool, **kwargs) -> Self:
         return type(self).from_pylibcudf(  # type: ignore[return-value]
             plc.reduce.scan(
                 self.to_pylibcudf(mode="read"),
-                aggregation.make_aggregation(scan_op, kwargs).c_obj,
+                aggregation.make_aggregation(scan_op, kwargs).plc_obj,
                 plc.reduce.ScanType.INCLUSIVE
                 if inclusive
                 else plc.reduce.ScanType.EXCLUSIVE,
@@ -1637,7 +1637,7 @@ def reduce(self, reduction_op: str, dtype=None, **kwargs) -> ScalarLike:
         with acquire_spill_lock():
             plc_scalar = plc.reduce.reduce(
                 self.to_pylibcudf(mode="read"),
-                aggregation.make_aggregation(reduction_op, kwargs).c_obj,
+                aggregation.make_aggregation(reduction_op, kwargs).plc_obj,
                 dtype_to_pylibcudf_type(col_dtype),
             )
             result_col = type(self).from_pylibcudf(
diff --git a/python/cudf/cudf/core/groupby/groupby.py b/python/cudf/cudf/core/groupby/groupby.py
index 60344cb5de9..badb5c79a47 100644
--- a/python/cudf/cudf/core/groupby/groupby.py
+++ b/python/cudf/cudf/core/groupby/groupby.py
@@ -167,7 +167,7 @@ def _(dtype: CategoricalDtype, str_agg: str) -> bool:
 
 def _is_all_scan_aggregate(all_aggs: list[list[str]]) -> bool:
     """
-    Returns true if all are scan aggregations.
+    Returns True if all are scan aggregations.
 
     Raises
     ------
@@ -809,7 +809,7 @@ def _aggregate(
                     or agg_obj.kind in valid_aggregations
                 ):
                     included_aggregations_i.append((agg, agg_obj.kind))
-                    col_aggregations.append(agg_obj.c_obj)
+                    col_aggregations.append(agg_obj.plc_obj)
             included_aggregations.append(included_aggregations_i)
             result_columns.append([])
             if col_aggregations:
diff --git a/python/cudf/cudf/core/window/rolling.py b/python/cudf/cudf/core/window/rolling.py
index a580c35ccbf..2f8a6d9e5e7 100644
--- a/python/cudf/cudf/core/window/rolling.py
+++ b/python/cudf/cudf/core/window/rolling.py
@@ -315,7 +315,7 @@ def _apply_agg_column(self, source_column, agg_name):
                         {"dtype": source_column.dtype}
                         if callable(agg_name)
                         else self.agg_params,
-                    ).c_obj,
+                    ).plc_obj,
                 )
             )