diff --git a/core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java b/core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java
index 6b28b5dcdfa68..2a6214d673af6 100644
--- a/core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java
+++ b/core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java
@@ -501,6 +501,7 @@ public boolean isMailerPluginPresent() {
     public User createAccount(String userName, String password) throws IOException {
         User user = User.getById(userName, true);
         user.addProperty(Details.fromPlainPassword(password));
+        SecurityListener.fireUserCreated(user.getId());
         return user;
     }
 
diff --git a/core/src/main/java/jenkins/security/SecurityListener.java b/core/src/main/java/jenkins/security/SecurityListener.java
index 134e992e7f662..a6bba962585ac 100644
--- a/core/src/main/java/jenkins/security/SecurityListener.java
+++ b/core/src/main/java/jenkins/security/SecurityListener.java
@@ -69,6 +69,15 @@ protected void failedToAuthenticate(@Nonnull String username){}
      */
     protected void loggedIn(@Nonnull String username){}
 
+    /**
+     * @since TODO
+     *
+     * Fired when a new user account has been created.
+     *
+     * @param username the user
+     */
+    protected void userCreated(@Nonnull String username) {}
+
     /**
      * Fired when a user has failed to log in.
      * Would be called after {@link #failedToAuthenticate}.
@@ -98,6 +107,14 @@ public static void fireAuthenticated(@Nonnull UserDetails details) {
         }
     }
 
+    /** @since TODO */
+    public static void fireUserCreated(@Nonnull String username) {
+        LOGGER.log(Level.FINE, "new user created: {0}", username);
+        for (SecurityListener l : all()) {
+            l.userCreated(username);
+        }
+    }
+
     /** @since 1.569 */
     public static void fireFailedToAuthenticate(@Nonnull String username) {
         LOGGER.log(Level.FINE, "failed to authenticate: {0}", username);
diff --git a/test/src/test/java/hudson/security/HudsonPrivateSecurityRealmTest.java b/test/src/test/java/hudson/security/HudsonPrivateSecurityRealmTest.java
index 2b0994aed3300..c458dc78e0416 100644
--- a/test/src/test/java/hudson/security/HudsonPrivateSecurityRealmTest.java
+++ b/test/src/test/java/hudson/security/HudsonPrivateSecurityRealmTest.java
@@ -290,6 +290,43 @@ public void selfRegistrationTriggerLoggedIn() throws Exception {
         assertTrue(spySecurityListener.loggedInUsernames.get(0).equals("bob"));
     }
 
+    @Issue("JENKINS-55307")
+    @Test
+    public void selfRegistrationTriggerUserCreation() throws Exception {
+        HudsonPrivateSecurityRealm securityRealm = new HudsonPrivateSecurityRealm(true, false, null);
+        j.jenkins.setSecurityRealm(securityRealm);
+        j.jenkins.setCrumbIssuer(null);
+
+        spySecurityListener.createdUsers.clear();
+        assertTrue(spySecurityListener.createdUsers.isEmpty());
+
+        selfRegistration("bob");
+        selfRegistration("charlie");
+        assertTrue(spySecurityListener.createdUsers.get(0).equals("bob"));
+        assertTrue(spySecurityListener.createdUsers.get(1).equals("charlie"));
+    }
+
+    @Issue("JENKINS-55307")
+    @Test
+    public void userCreationFromRealm() throws Exception {
+        HudsonPrivateSecurityRealm securityRealm = new HudsonPrivateSecurityRealm(false, false, null);
+        j.jenkins.setSecurityRealm(securityRealm);
+
+        spySecurityListener.createdUsers.clear();
+        assertTrue(spySecurityListener.createdUsers.isEmpty());
+
+        User u1 = securityRealm.createAccount("alice", "alicePassword");
+        u1.setFullName("Alice User");
+        u1.save();
+
+        User u2 = securityRealm.createAccount("debbie", "debbiePassword");
+        u2.setFullName("Debbie User");
+        u2.save();
+
+        assertTrue(spySecurityListener.createdUsers.get(0).equals("alice"));
+        assertTrue(spySecurityListener.createdUsers.get(1).equals("debbie"));
+    }
+
     private void createFirstAccount(String login) throws Exception {
         assertNull(User.getById(login, false));
 
@@ -366,11 +403,15 @@ private void selfRegistration(String login) throws Exception {
     @TestExtension
     public static class SpySecurityListenerImpl extends SecurityListener {
         private List<String> loggedInUsernames = new ArrayList<>();
+        private List<String> createdUsers = new ArrayList<String>();
 
         @Override
         protected void loggedIn(@Nonnull String username) {
             loggedInUsernames.add(username);
         }
+
+        @Override
+        protected void userCreated(@Nonnull String username) { createdUsers.add(username); }
     }
 
     @Issue("SECURITY-786")