diff --git a/docs/docstrings/comm/null_comm.md b/docs/docstrings/comm/null_comm.md
deleted file mode 100644
index 2c4639d8..00000000
--- a/docs/docstrings/comm/null_comm.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# null_comm
-
-::: comm.null_comm
diff --git a/mkdocs.yml b/mkdocs.yml
index 24aa01e0..aac85b0d 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -46,7 +46,6 @@ nav:
           - "decomposition": docstrings/comm/decomposition.md
           - "local_comm": docstrings/comm/local_comm.md
           - "mpi": docstrings/comm/mpi.md
-          - "null_comm": docstrings/comm/null_comm.md
           - "partitioner": docstrings/comm/partitioner.md
       - debug:
           - "config": docstrings/debug/config.md
diff --git a/ndsl/__init__.py b/ndsl/__init__.py
index 39f8e70b..dd5f21e3 100644
--- a/ndsl/__init__.py
+++ b/ndsl/__init__.py
@@ -3,7 +3,6 @@
 from .comm.communicator import CubedSphereCommunicator, TileCommunicator
 from .comm.local_comm import LocalComm
 from .comm.mpi import MPIComm
-from .comm.null_comm import NullComm
 from .comm.partitioner import CubedSpherePartitioner, TilePartitioner
 from .constants import ConstantVersions
 from .dsl.caches.codepath import FV3CodePath
@@ -38,7 +37,6 @@
     "TileCommunicator",
     "LocalComm",
     "MPIComm",
-    "NullComm",
     "CubedSpherePartitioner",
     "TilePartitioner",
     "ConstantVersions",
diff --git a/ndsl/comm/null_comm.py b/ndsl/comm/null_comm.py
deleted file mode 100644
index bee499ce..00000000
--- a/ndsl/comm/null_comm.py
+++ /dev/null
@@ -1,118 +0,0 @@
-import copy
-import warnings
-from collections.abc import Mapping
-from typing import Any, TypeVar, cast
-
-from ndsl.comm.comm_abc import Comm, ReductionOperator, Request
-
-
-T = TypeVar("T")
-
-
-class NullAsyncResult(Request):
-    def __init__(self, recvbuf: Any = None) -> None:
-        self._recvbuf = recvbuf
-
-    def wait(self) -> None:
-        if self._recvbuf is not None:
-            self._recvbuf[:] = 0.0
-
-
-class NullComm(Comm[T]):
-    """
-    A class with a subset of the mpi4py Comm API, but which
-    'receives' a fill value (default zero) instead of using MPI.
-    """
-
-    default_fill_value: T = cast(T, 0)
-
-    def __init__(self, rank: int, total_ranks: int, fill_value: T = default_fill_value):
-        """
-        Args:
-            rank: rank to mock
-            total_ranks: number of total MPI ranks to mock
-            fill_value: fill halos with this value when performing
-                halo updates.
-        """
-        warnings.warn(
-            "NullComm is deprecated and will be removed with the next version of NDSL. "
-            "Use MPIComm or LocalComm instead.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        self.rank = rank
-        self.total_ranks = total_ranks
-        self._fill_value = fill_value
-        self._split_comms: Mapping[Any, list[NullComm]] = {}
-
-    def __repr__(self) -> str:
-        return f"NullComm(rank={self.rank}, total_ranks={self.total_ranks})"
-
-    def Get_rank(self) -> int:
-        return self.rank
-
-    def Get_size(self) -> int:
-        return self.total_ranks
-
-    def bcast(self, value: T | None, root: int = 0) -> T | None:
-        return value
-
-    def barrier(self) -> None:
-        return
-
-    def Barrier(self) -> None:
-        return
-
-    def Scatter(self, sendbuf, recvbuf, root: int = 0, **kwargs: dict):  # type: ignore[no-untyped-def]
-        if recvbuf is not None:
-            recvbuf[:] = self._fill_value
-
-    def Gather(self, sendbuf, recvbuf, root: int = 0, **kwargs: dict):  # type: ignore[no-untyped-def]
-        if recvbuf is not None:
-            recvbuf[:] = self._fill_value
-
-    def allgather(self, sendobj: T) -> list[T]:
-        return [copy.deepcopy(sendobj) for _ in range(self.total_ranks)]
-
-    def Send(self, sendbuf, dest, tag: int = 0, **kwargs: dict):  # type: ignore[no-untyped-def]
-        pass
-
-    def Isend(self, sendbuf, dest, tag: int = 0, **kwargs: dict) -> Request:  # type: ignore[no-untyped-def]
-        return NullAsyncResult()
-
-    def Recv(self, recvbuf, source, tag: int = 0, **kwargs: dict):  # type: ignore[no-untyped-def]
-        recvbuf[:] = self._fill_value
-
-    def Irecv(self, recvbuf, source, tag: int = 0, **kwargs: dict) -> Request:  # type: ignore[no-untyped-def]
-        return NullAsyncResult(recvbuf)
-
-    def sendrecv(self, sendbuf, dest, **kwargs: dict):  # type: ignore[no-untyped-def]
-        return sendbuf
-
-    def Split(self, color, key) -> Comm:  # type: ignore[no-untyped-def]
-        # key argument is ignored, assumes we're calling the ranks from least to
-        # greatest when mocking Split
-        self._split_comms[color] = self._split_comms.get(color, [])  # type: ignore[index]
-        rank = len(self._split_comms[color])
-        total_ranks = rank + 1
-        new_comm = NullComm(
-            rank=rank, total_ranks=total_ranks, fill_value=self._fill_value
-        )
-        for comm in self._split_comms[color]:
-            # won't know how many ranks there are until everything is split
-            comm.total_ranks = total_ranks
-        self._split_comms[color].append(new_comm)
-        return new_comm
-
-    def allreduce(
-        self, sendobj: T, op: ReductionOperator = ReductionOperator.NO_OP
-    ) -> T:
-        return self._fill_value
-
-    def Allreduce(self, sendobj: T, recvobj: T, op: ReductionOperator) -> T:
-        # TODO: what about reduction operator `op`?
-        recvobj = sendobj
-        return recvobj
-
-    def Allreduce_inplace(self, obj: T, op: ReductionOperator) -> T:
-        raise NotImplementedError("NullComm.Allreduce_inplace")
diff --git a/tests/test_null_comm.py b/tests/test_null_comm.py
deleted file mode 100644
index 9ed19d9c..00000000
--- a/tests/test_null_comm.py
+++ /dev/null
@@ -1,16 +0,0 @@
-import pytest
-
-from ndsl import (
-    CubedSphereCommunicator,
-    CubedSpherePartitioner,
-    NullComm,
-    TilePartitioner,
-)
-
-
-def test_can_create_cube_communicator():
-    with pytest.deprecated_call(match="NullComm is deprecated"):
-        mpi_comm = NullComm(rank=2, total_ranks=24)
-        partitioner = CubedSpherePartitioner(TilePartitioner(layout=(2, 2)))
-        communicator = CubedSphereCommunicator(mpi_comm, partitioner)
-        assert communicator.tile.partitioner