diff --git a/.github/labeler.yml b/.github/labeler.yml
index d48b9fdd5d3..05fc74e714b 100644
--- a/.github/labeler.yml
+++ b/.github/labeler.yml
@@ -19,3 +19,7 @@ R-loom-multi-thread:
 - tokio/src/runtime/scheduler/multi_thread/**
 - tokio/src/runtime/task/*
 - tokio/src/runtime/task/**
+
+R-loom-util-sync:
+  - tokio-util/src/sync/*
+  - tokio-util/src/sync/**/*
diff --git a/.github/workflows/loom.yml b/.github/workflows/loom.yml
index 5efa0aca74b..f7f436fd5c3 100644
--- a/.github/workflows/loom.yml
+++ b/.github/workflows/loom.yml
@@ -95,3 +95,19 @@ jobs:
         working-directory: tokio
         env:
           SCOPE: ${{ matrix.scope }}
+
+  loom-util-sync:
+    name: loom tokio-util::sync
+    # base_ref is null when it's not a pull request
+    if: github.repository_owner == 'tokio-rs' && (contains(github.event.pull_request.labels.*.name, 'R-loom-util-sync') || (github.base_ref == null))
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      - name: Install Rust ${{ env.rust_stable }}
+        uses: dtolnay/rust-toolchain@master
+        with:
+            toolchain: ${{ env.rust_stable }}
+      - uses: Swatinem/rust-cache@v2
+      - name: run tests
+        run: cargo test --lib --release --features full -- --nocapture sync::tests
+        working-directory: tokio-util
diff --git a/tokio-stream/src/wrappers.rs b/tokio-stream/src/wrappers.rs
index 62cabe4f7d0..c79b6c7681b 100644
--- a/tokio-stream/src/wrappers.rs
+++ b/tokio-stream/src/wrappers.rs
@@ -22,9 +22,9 @@ cfg_sync! {
 }
 
 cfg_signal! {
-    #[cfg(unix)]
+    #[cfg(all(unix, not(loom)))]
     mod signal_unix;
-    #[cfg(unix)]
+    #[cfg(all(unix, not(loom)))]
     pub use signal_unix::SignalStream;
 
     #[cfg(any(windows, docsrs))]
@@ -39,12 +39,14 @@ cfg_time! {
 }
 
 cfg_net! {
+    #[cfg(not(loom))]
     mod tcp_listener;
+    #[cfg(not(loom))]
     pub use tcp_listener::TcpListenerStream;
 
-    #[cfg(unix)]
+    #[cfg(all(unix, not(loom)))]
     mod unix_listener;
-    #[cfg(unix)]
+    #[cfg(all(unix, not(loom)))]
     pub use unix_listener::UnixListenerStream;
 }
 
@@ -57,6 +59,8 @@ cfg_io_util! {
 }
 
 cfg_fs! {
+    #[cfg(not(loom))]
     mod read_dir;
+    #[cfg(not(loom))]
     pub use read_dir::ReadDirStream;
 }
diff --git a/tokio-util/Cargo.toml b/tokio-util/Cargo.toml
index 29ea79ef726..ccfecd077f6 100644
--- a/tokio-util/Cargo.toml
+++ b/tokio-util/Cargo.toml
@@ -57,6 +57,9 @@ futures-test = "0.3.5"
 parking_lot = "0.12.0"
 tempfile = "3.1.0"
 
+[target.'cfg(loom)'.dev-dependencies]
+loom = { version = "0.7", features = ["futures", "checkpoint"] }
+
 [package.metadata.docs.rs]
 all-features = true
 # enable unstable features in the documentation
diff --git a/tokio-util/src/loom.rs b/tokio-util/src/loom.rs
index dd03feaba1a..563e6d5ad25 100644
--- a/tokio-util/src/loom.rs
+++ b/tokio-util/src/loom.rs
@@ -1 +1,9 @@
-pub(crate) use std::sync;
+//! This module abstracts over `loom` and `std::sync` types depending on whether we
+//! are running loom tests or not.
+
+pub(crate) mod sync {
+    #[cfg(all(test, loom))]
+    pub(crate) use loom::sync::{Arc, Mutex, MutexGuard};
+    #[cfg(not(all(test, loom)))]
+    pub(crate) use std::sync::{Arc, Mutex, MutexGuard};
+}
diff --git a/tokio-util/src/net/mod.rs b/tokio-util/src/net/mod.rs
index a548c1c4a41..d64b451e177 100644
--- a/tokio-util/src/net/mod.rs
+++ b/tokio-util/src/net/mod.rs
@@ -1,3 +1,5 @@
+#![cfg(not(loom))]
+
 //! TCP/UDP/Unix helpers for tokio.
 
 use crate::either::Either;
diff --git a/tokio-util/src/sync/mod.rs b/tokio-util/src/sync/mod.rs
index c6c97471ec2..3bb767a13b8 100644
--- a/tokio-util/src/sync/mod.rs
+++ b/tokio-util/src/sync/mod.rs
@@ -15,3 +15,6 @@ pub use poll_semaphore::PollSemaphore;
 
 mod reusable_box;
 pub use reusable_box::ReusableBoxFuture;
+
+#[cfg(test)]
+mod tests;
diff --git a/tokio-util/src/sync/tests/loom_cancellation_token.rs b/tokio-util/src/sync/tests/loom_cancellation_token.rs
index b57503ddb16..c92c8c807f1 100644
--- a/tokio-util/src/sync/tests/loom_cancellation_token.rs
+++ b/tokio-util/src/sync/tests/loom_cancellation_token.rs
@@ -100,6 +100,7 @@ fn drop_token_no_child() {
     });
 }
 
+#[ignore]
 #[test]
 fn drop_token_with_children() {
     loom::model(|| {
@@ -125,6 +126,7 @@ fn drop_token_with_children() {
     });
 }
 
+#[ignore]
 #[test]
 fn drop_and_cancel_token() {
     loom::model(|| {
@@ -150,6 +152,7 @@ fn drop_and_cancel_token() {
     });
 }
 
+#[ignore]
 #[test]
 fn cancel_parent_and_child() {
     loom::model(|| {
diff --git a/tokio-util/src/sync/tests/mod.rs b/tokio-util/src/sync/tests/mod.rs
index 8b137891791..4ed3fe2028b 100644
--- a/tokio-util/src/sync/tests/mod.rs
+++ b/tokio-util/src/sync/tests/mod.rs
@@ -1 +1,2 @@
-
+#[cfg(loom)]
+mod loom_cancellation_token;
diff --git a/tokio-util/src/udp/mod.rs b/tokio-util/src/udp/mod.rs
index f88ea030aa3..3ea2eeff2c4 100644
--- a/tokio-util/src/udp/mod.rs
+++ b/tokio-util/src/udp/mod.rs
@@ -1,3 +1,5 @@
+#![cfg(not(loom))]
+
 //! UDP framing
 
 mod frame;
diff --git a/tokio-util/tests/udp.rs b/tokio-util/tests/udp.rs
index 6e31b3a5394..12c852fa75f 100644
--- a/tokio-util/tests/udp.rs
+++ b/tokio-util/tests/udp.rs
@@ -1,6 +1,7 @@
 #![warn(rust_2018_idioms)]
 #![cfg(not(target_os = "wasi"))] // Wasi doesn't support UDP
 #![cfg(not(miri))] // No `socket` in Miri.
+#![cfg(not(loom))] // No udp / UdpFramed in loom
 
 use tokio::net::UdpSocket;
 use tokio_stream::StreamExt;