diff --git a/include/zephyr/posix/pthread.h b/include/zephyr/posix/pthread.h
index c7909d40ae..a7feef8bc7 100644
--- a/include/zephyr/posix/pthread.h
+++ b/include/zephyr/posix/pthread.h
@@ -33,6 +33,8 @@ extern "C" {
 #define PTHREAD_CANCELED       ((void *)-1)
 #define PTHREAD_CANCEL_ENABLE  0
 #define PTHREAD_CANCEL_DISABLE 1
+#define PTHREAD_CANCEL_DEFERRED     0
+#define PTHREAD_CANCEL_ASYNCHRONOUS 1
 
 /* Passed to pthread_once */
 #define PTHREAD_ONCE_INIT                                                                          \
@@ -452,6 +454,7 @@ int pthread_detach(pthread_t thread);
 int pthread_create(pthread_t *newthread, const pthread_attr_t *attr,
 		   void *(*threadroutine)(void *), void *arg);
 int pthread_setcancelstate(int state, int *oldstate);
+int pthread_setcanceltype(int type, int *oldtype);
 int pthread_attr_setschedparam(pthread_attr_t *attr,
 			       const struct sched_param *schedparam);
 int pthread_setschedparam(pthread_t pthread, int policy,
diff --git a/lib/posix/posix_internal.h b/lib/posix/posix_internal.h
index 39c64c5333..4ce000e514 100644
--- a/lib/posix/posix_internal.h
+++ b/lib/posix/posix_internal.h
@@ -38,6 +38,7 @@ struct posix_thread {
 
 	/* Pthread cancellation */
 	uint8_t cancel_state;
+	uint8_t cancel_type;
 	bool cancel_pending;
 
 	/* Detach state */
diff --git a/lib/posix/pthread.c b/lib/posix/pthread.c
index e96cfc287e..d00d5564c7 100644
--- a/lib/posix/pthread.c
+++ b/lib/posix/pthread.c
@@ -500,6 +500,34 @@ int pthread_setcancelstate(int state, int *oldstate)
 	return 0;
 }
 
+/**
+ * @brief Set cancelability Type.
+ *
+ * See IEEE 1003.1
+ */
+int pthread_setcanceltype(int type, int *oldtype)
+{
+	k_spinlock_key_t key;
+	struct posix_thread *t;
+
+	if (type != PTHREAD_CANCEL_DEFERRED && type != PTHREAD_CANCEL_ASYNCHRONOUS) {
+		LOG_ERR("Invalid pthread cancel type %d", type);
+		return EINVAL;
+	}
+
+	t = to_posix_thread(pthread_self());
+	if (t == NULL) {
+		return EINVAL;
+	}
+
+	key = k_spin_lock(&pthread_pool_lock);
+	*oldtype = t->cancel_type;
+	t->cancel_type = type;
+	k_spin_unlock(&pthread_pool_lock, key);
+
+	return 0;
+}
+
 /**
  * @brief Cancel execution of a thread.
  *