diff --git a/autotests/knewpasswordwidgettest.h b/autotests/knewpasswordwidgettest.h
--- a/autotests/knewpasswordwidgettest.h
+++ b/autotests/knewpasswordwidgettest.h
@@ -42,6 +42,7 @@
     void testWarningColorPostMatch();
     void disablingWidgetShouldUseDisabledPalette();
     void disablingParentShouldUseDisabledPalette();
+    void disablingRevealPasswordShouldHideVisibilityAction();
 };
 
 #endif
diff --git a/autotests/knewpasswordwidgettest.cpp b/autotests/knewpasswordwidgettest.cpp
--- a/autotests/knewpasswordwidgettest.cpp
+++ b/autotests/knewpasswordwidgettest.cpp
@@ -19,6 +19,7 @@
 
 #include "knewpasswordwidgettest.h"
 
+#include <QAction>
 #include <QLineEdit>
 #include <QTest>
 
@@ -265,3 +266,22 @@
 
     delete widget;
 }
+
+void KNewPasswordWidgetTest::disablingRevealPasswordShouldHideVisibilityAction()
+{
+    KNewPasswordWidget pwdWidget;
+
+    auto linePassword = pwdWidget.findChild<QLineEdit*>(QStringLiteral("linePassword"));
+    QVERIFY(linePassword);
+
+    auto visibilityAction = linePassword->findChild<QAction*>(QStringLiteral("visibilityAction"));
+    QVERIFY(visibilityAction && !visibilityAction->isVisible());
+
+    linePassword->setText(QStringLiteral("1234"));
+    QVERIFY(visibilityAction->isVisible());
+    QCOMPARE(pwdWidget.isRevealPasswordAvailable(), visibilityAction->isVisible());
+
+    pwdWidget.setRevealPasswordAvailable(false);
+    QVERIFY(!visibilityAction->isVisible());
+    QCOMPARE(pwdWidget.isRevealPasswordAvailable(), visibilityAction->isVisible());
+}
diff --git a/src/knewpassworddialog.h b/src/knewpassworddialog.h
--- a/src/knewpassworddialog.h
+++ b/src/knewpassworddialog.h
@@ -202,6 +202,23 @@
     QString password() const;
 
     /**
+     * Whether to show the visibility trailing action in the line edit.
+     * Default is true. This can be used to honor the lineedit_reveal_password
+     * kiosk key, for example:
+     * \code
+     * passwordDialog.setRevealPasswordAvailable(KAuthorized::authorize(QStringLiteral("lineedit_reveal_password")));
+     * \endcode
+     * @since 5.31
+     */
+    void setRevealPasswordAvailable(bool reveal);
+
+    /**
+     * Whether the visibility trailing action in the line edit is visible.
+     * @since 5.31
+     */
+    bool isRevealPasswordAvailable() const;
+
+    /**
      * @internal
      */
     void accept() Q_DECL_OVERRIDE;
diff --git a/src/knewpassworddialog.cpp b/src/knewpassworddialog.cpp
--- a/src/knewpassworddialog.cpp
+++ b/src/knewpassworddialog.cpp
@@ -242,6 +242,16 @@
     return d->pass;
 }
 
+void KNewPasswordDialog::setRevealPasswordAvailable(bool reveal)
+{
+    d->ui.pwdWidget->setRevealPasswordAvailable(reveal);
+}
+
+bool KNewPasswordDialog::isRevealPasswordAvailable() const
+{
+    return d->ui.pwdWidget->isRevealPasswordAvailable();
+}
+
 bool KNewPasswordDialog::checkPassword(const QString &)
 {
     return true;
diff --git a/src/knewpasswordwidget.h b/src/knewpasswordwidget.h
--- a/src/knewpasswordwidget.h
+++ b/src/knewpasswordwidget.h
@@ -81,6 +81,11 @@
     Q_PROPERTY(int passwordStrengthWarningLevel READ passwordStrengthWarningLevel WRITE setPasswordStrengthWarningLevel)
     Q_PROPERTY(QColor backgroundWarningColor READ backgroundWarningColor WRITE setBackgroundWarningColor)
     Q_PROPERTY(bool passwordStrengthMeterVisible READ isPasswordStrengthMeterVisible WRITE setPasswordStrengthMeterVisible)
+    /**
+     * @since 5.31
+     */
+    Q_PROPERTY(bool revealPasswordAvailable READ isRevealPasswordAvailable WRITE setRevealPasswordAvailable)
+
 
 public:
 
@@ -152,6 +157,12 @@
     bool isPasswordStrengthMeterVisible() const;
 
     /**
+     * Whether the visibility trailing action in the line edit is visible.
+     * @since 5.31
+     */
+    bool isRevealPasswordAvailable() const;
+
+    /**
      * Returns the password entered.
      * @note Only returns meaningful data when passwordStatus
      *       is either WeakPassword or StrongPassword.
@@ -219,6 +230,17 @@
      */
     void setPasswordStrengthMeterVisible(bool visible);
 
+    /**
+     * Whether to show the visibility trailing action in the line edit.
+     * Default is true. This can be used to honor the lineedit_reveal_password
+     * kiosk key, for example:
+     * \code
+     * passwordWidget.setRevealPasswordAvailable(KAuthorized::authorize(QStringLiteral("lineedit_reveal_password")));
+     * \endcode
+     * @since 5.31
+     */
+    void setRevealPasswordAvailable(bool reveal);
+
 Q_SIGNALS:
 
     /**
diff --git a/src/knewpasswordwidget.cpp b/src/knewpasswordwidget.cpp
--- a/src/knewpasswordwidget.cpp
+++ b/src/knewpasswordwidget.cpp
@@ -34,6 +34,7 @@
           minimumPasswordLength(0),
           passwordStrengthWarningLevel(1),
           reasonablePasswordLength(8),
+          revealPasswordAvailable(true),
           toggleEchoModeAction(nullptr)
     {}
 
@@ -50,6 +51,7 @@
     int minimumPasswordLength;
     int passwordStrengthWarningLevel;
     int reasonablePasswordLength;
+    bool revealPasswordAvailable;
 
     QAction *toggleEchoModeAction;
     QColor backgroundWarningColor;
@@ -73,6 +75,7 @@
 
     QIcon visibilityIcon = QIcon::fromTheme(QStringLiteral("visibility"), QIcon(QStringLiteral(":/icons/visibility.svg")));
     toggleEchoModeAction = ui.linePassword->addAction(visibilityIcon, QLineEdit::TrailingPosition);
+    toggleEchoModeAction->setObjectName(QStringLiteral("visibilityAction"));
     toggleEchoModeAction->setVisible(false);
     toggleEchoModeAction->setToolTip(tr("Change the visibility of the password"));
     connect(toggleEchoModeAction, SIGNAL(triggered(bool)), q, SLOT(_k_toggleEchoMode()));
@@ -138,7 +141,7 @@
 
 void KNewPasswordWidget::KNewPasswordWidgetPrivate::_k_showToggleEchoModeAction(const QString &text)
 {
-    toggleEchoModeAction->setVisible(!text.isEmpty());
+    toggleEchoModeAction->setVisible(revealPasswordAvailable && !text.isEmpty());
 }
 
 int KNewPasswordWidget::KNewPasswordWidgetPrivate::effectivePasswordLength(const QString &password)
@@ -261,6 +264,11 @@
     return d->ui.labelStrengthMeter->isVisible() && d->ui.strengthBar->isVisible();
 }
 
+bool KNewPasswordWidget::isRevealPasswordAvailable() const
+{
+    return d->revealPasswordAvailable;
+}
+
 QString KNewPasswordWidget::password() const
 {
     return d->ui.linePassword->text();
@@ -312,4 +320,11 @@
     d->ui.strengthBar->setVisible(visible);
 }
 
+void KNewPasswordWidget::setRevealPasswordAvailable(bool reveal)
+{
+    d->revealPasswordAvailable = reveal;
+    // Force update, we might already have shown the action.
+    d->_k_showToggleEchoModeAction(password());
+}
+
 #include "moc_knewpasswordwidget.cpp"