diff --git a/test/runner/defs.bzl b/test/runner/defs.bzl
index 6e7212c71..dbc9364f1 100644
--- a/test/runner/defs.bzl
+++ b/test/runner/defs.bzl
@@ -69,7 +69,6 @@ def _syscall_test(
         file_access = "exclusive",
         overlay = False,
         add_host_communication = False,
-        lisafs = True,
         fuse = False,
         container = None,
         one_sandbox = True,
@@ -85,8 +84,6 @@ def _syscall_test(
         name += "_overlay"
     if fuse:
         name += "_fuse"
-    if not lisafs:
-        name += "_p9"
     if network != "none":
         name += "_" + network + "net"
 
@@ -139,7 +136,6 @@ def _syscall_test(
         "--file-access=" + file_access,
         "--overlay=" + str(overlay),
         "--add-host-communication=" + str(add_host_communication),
-        "--lisafs=" + str(lisafs),
         "--fuse=" + str(fuse),
         "--strace=" + str(debug),
         "--debug=" + str(debug),
@@ -226,20 +222,6 @@ def syscall_test(
             **kwargs
         )
 
-    # Generate a P9 variant with the default platform.
-    _syscall_test(
-        test = test,
-        platform = default_platform,
-        use_tmpfs = use_tmpfs,
-        add_host_communication = add_host_communication,
-        tags = platforms[default_platform] + tags,
-        debug = debug,
-        fuse = fuse,
-        container = container,
-        one_sandbox = one_sandbox,
-        lisafs = False,
-        **kwargs
-    )
     if add_overlay:
         _syscall_test(
             test = test,
diff --git a/test/runner/main.go b/test/runner/main.go
index 0c47a158d..eeacc0024 100644
--- a/test/runner/main.go
+++ b/test/runner/main.go
@@ -52,7 +52,6 @@ var (
 	fileAccess         = flag.String("file-access", "exclusive", "mounts root in exclusive or shared mode")
 	overlay            = flag.Bool("overlay", false, "wrap filesystem mounts with writable tmpfs overlay")
 	fuse               = flag.Bool("fuse", false, "enable FUSE")
-	lisafs             = flag.Bool("lisafs", true, "enable lisafs protocol if vfs2 is also enabled")
 	container          = flag.Bool("container", false, "run tests in their own namespaces (user ns, network ns, etc), pretending to be root. Implicitly enabled if network=host, or if using network namespaces")
 	setupContainerPath = flag.String("setup-container", "", "path to setup_container binary (for use with --container)")
 	trace              = flag.Bool("trace", false, "enables all trace points")
@@ -200,7 +199,6 @@ func runRunsc(tc *gtest.TestCase, spec *specs.Spec) error {
 		"-TESTONLY-allow-packet-endpoint-write=true",
 		"-net-raw=true",
 		fmt.Sprintf("-panic-signal=%d", unix.SIGTERM),
-		fmt.Sprintf("-lisafs=%t", *lisafs),
 		"-watchdog-action=panic",
 		"-platform", *platform,
 		"-file-access", *fileAccess,
@@ -435,7 +433,6 @@ func runTestCaseRunsc(testBin string, tc *gtest.TestCase, args []string, t *test
 		platformVar = "TEST_ON_GVISOR"
 		networkVar  = "GVISOR_NETWORK"
 		fuseVar     = "FUSE_ENABLED"
-		lisafsVar   = "LISAFS_ENABLED"
 	)
 	env := append(os.Environ(), platformVar+"="+*platform, networkVar+"="+*network)
 	if *platformSupport != "" {
@@ -446,11 +443,6 @@ func runTestCaseRunsc(testBin string, tc *gtest.TestCase, args []string, t *test
 	} else {
 		env = append(env, fuseVar+"=FALSE")
 	}
-	if *lisafs {
-		env = append(env, lisafsVar+"=TRUE")
-	} else {
-		env = append(env, lisafsVar+"=FALSE")
-	}
 
 	// Remove shard env variables so that the gunit binary does not try to
 	// interpret them.
diff --git a/test/syscalls/linux/connect_external.cc b/test/syscalls/linux/connect_external.cc
index fa043969f..4e44de0c9 100644
--- a/test/syscalls/linux/connect_external.cc
+++ b/test/syscalls/linux/connect_external.cc
@@ -114,9 +114,6 @@ TEST_P(GoferStreamSeqpacketTest, NonListening) {
 
 // Bind to a socket, then Listen and Accept.
 TEST_P(GoferStreamSeqpacketTest, BindListenAccept) {
-  // Binding to host socket requires LisaFS.
-  SKIP_IF(IsRunningOnGvisor() && !IsLisafsEnabled());
-
   std::string env;
   ProtocolSocket proto;
   std::tie(env, proto) = GetParam();
diff --git a/test/util/test_util.cc b/test/util/test_util.cc
index b0ab5de7d..181adfc1f 100644
--- a/test/util/test_util.cc
+++ b/test/util/test_util.cc
@@ -42,7 +42,6 @@ namespace testing {
 
 constexpr char kGvisorNetwork[] = "GVISOR_NETWORK";
 constexpr char kFuseEnabled[] = "FUSE_ENABLED";
-constexpr char kLisafsEnabled[] = "LISAFS_ENABLED";
 
 bool IsRunningOnGvisor() { return GvisorPlatform() != Platform::kNative; }
 
@@ -65,11 +64,6 @@ bool IsFUSEEnabled() {
   return env && strcmp(env, "TRUE") == 0;
 }
 
-bool IsLisafsEnabled() {
-  const char* env = getenv(kLisafsEnabled);
-  return env && strncmp(env, "TRUE", 4) == 0;
-}
-
 // Inline cpuid instruction.  Preserve %ebx/%rbx register. In PIC compilations
 // %ebx contains the address of the global offset table. %rbx is occasionally
 // used to address stack variables in presence of dynamic allocas.
diff --git a/test/util/test_util.h b/test/util/test_util.h
index f07eae6a5..9eec41904 100644
--- a/test/util/test_util.h
+++ b/test/util/test_util.h
@@ -225,7 +225,6 @@ bool IsRunningOnGvisor();
 const std::string GvisorPlatform();
 bool IsRunningWithHostinet();
 bool IsFUSEEnabled();
-bool IsLisafsEnabled();
 
 #ifdef __linux__
 void SetupGvisorDeathTest();