diff --git a/py/selenium/webdriver/common/proxy.py b/py/selenium/webdriver/common/proxy.py
index 1f69720321a04..d4af3338171a1 100644
--- a/py/selenium/webdriver/common/proxy.py
+++ b/py/selenium/webdriver/common/proxy.py
@@ -17,8 +17,6 @@
 
 """The Proxy implementation."""
 
-import warnings
-
 
 class ProxyTypeFactory:
     """Factory for proxy types."""
@@ -66,14 +64,6 @@ def __get__(self, obj, cls):
     def __set__(self, obj, value):
         if self.name == "autodetect" and not isinstance(value, bool):
             raise ValueError("Autodetect proxy value needs to be a boolean")
-        if self.name == "ftpProxy":
-            # TODO: Remove ftpProxy in future version and remove deprecation warning
-            # https://github.com/SeleniumHQ/selenium/issues/15905
-            warnings.warn(
-                "ftpProxy is deprecated and will be removed in the future",
-                DeprecationWarning,
-                stacklevel=2,
-            )
         getattr(obj, "_verify_proxy_type_compatibility")(self.p_type)
         setattr(obj, "proxyType", self.p_type)
         setattr(obj, self.name, value)
@@ -84,7 +74,6 @@ class Proxy:
 
     proxyType = ProxyType.UNSPECIFIED
     autodetect = False
-    ftpProxy = ""  # TODO: Remove ftpProxy in future version and remove deprecation warning
     httpProxy = ""
     noProxy = ""
     proxyAutoconfigUrl = ""
@@ -98,10 +87,6 @@ class Proxy:
     auto_detect = _ProxyTypeDescriptor("autodetect", ProxyType.AUTODETECT)
     """Proxy autodetection setting (boolean)."""
 
-    # TODO: Remove ftpProxy in future version and remove deprecation warning
-    ftp_proxy = _ProxyTypeDescriptor("ftpProxy", ProxyType.MANUAL)
-    """FTP proxy address (deprecated)."""
-
     http_proxy = _ProxyTypeDescriptor("httpProxy", ProxyType.MANUAL)
     """HTTP proxy address."""
 
@@ -135,15 +120,6 @@ def __init__(self, raw=None):
         if raw:
             if "proxyType" in raw and raw["proxyType"]:
                 self.proxy_type = ProxyType.load(raw["proxyType"])
-            # TODO: Remove ftpProxy in future version and remove deprecation warning
-            # https://github.com/SeleniumHQ/selenium/issues/15905
-            if "ftpProxy" in raw and raw["ftpProxy"]:
-                warnings.warn(
-                    "ftpProxy is deprecated and will be removed in the future",
-                    DeprecationWarning,
-                    stacklevel=2,
-                )
-                self.ftp_proxy = raw["ftpProxy"]
             if "httpProxy" in raw and raw["httpProxy"]:
                 self.http_proxy = raw["httpProxy"]
             if "noProxy" in raw and raw["noProxy"]:
@@ -186,10 +162,8 @@ def _verify_proxy_type_compatibility(self, compatible_proxy):
 
     def to_capabilities(self):
         proxy_caps = {"proxyType": self.proxyType["string"].lower()}
-        # TODO: Remove ftpProxy in future version and remove deprecation warning
         proxies = [
             "autodetect",
-            "ftpProxy",
             "httpProxy",
             "proxyAutoconfigUrl",
             "sslProxy",
diff --git a/py/test/selenium/webdriver/common/proxy_tests.py b/py/test/selenium/webdriver/common/proxy_tests.py
index df287593f3640..821042c290de7 100644
--- a/py/test/selenium/webdriver/common/proxy_tests.py
+++ b/py/test/selenium/webdriver/common/proxy_tests.py
@@ -22,9 +22,6 @@
 
 MANUAL_PROXY = {
     "httpProxy": "some.url:1234",
-    # TODO: Remove ftpProxy in future (currently deprecated)
-    # https://github.com/SeleniumHQ/selenium/issues/15905
-    "ftpProxy": "ftp.proxy",
     "noProxy": "localhost, foo.localhost",
     "sslProxy": "ssl.proxy:1234",
     "socksProxy": "socks.proxy:65555",
@@ -45,9 +42,6 @@
 def test_can_add_manual_proxy_to_options():
     proxy = Proxy()
     proxy.http_proxy = MANUAL_PROXY["httpProxy"]
-    # TODO: Remove ftpProxy in future (currently deprecated)
-    # https://github.com/SeleniumHQ/selenium/issues/15905
-    proxy.ftp_proxy = MANUAL_PROXY["ftpProxy"]
     proxy.no_proxy = MANUAL_PROXY["noProxy"]
     proxy.sslProxy = MANUAL_PROXY["sslProxy"]
     proxy.socksProxy = MANUAL_PROXY["socksProxy"]
@@ -102,9 +96,6 @@ def test_can_init_manual_proxy():
 
     assert ProxyType.MANUAL == proxy.proxy_type
     assert MANUAL_PROXY["httpProxy"] == proxy.http_proxy
-    # TODO: Remove ftpProxy in future (currently deprecated)
-    # https://github.com/SeleniumHQ/selenium/issues/15905
-    assert MANUAL_PROXY["ftpProxy"] == proxy.ftp_proxy
     assert MANUAL_PROXY["noProxy"] == proxy.no_proxy
     assert MANUAL_PROXY["sslProxy"] == proxy.sslProxy
     assert MANUAL_PROXY["socksProxy"] == proxy.socksProxy
@@ -129,9 +120,6 @@ def test_can_init_empty_proxy():
     proxy = Proxy()
     assert ProxyType.UNSPECIFIED == proxy.proxy_type
     assert "" == proxy.http_proxy
-    # TODO: Remove ftpProxy in future (currently deprecated)
-    # https://github.com/SeleniumHQ/selenium/issues/15905
-    assert "" == proxy.ftp_proxy
     assert "" == proxy.no_proxy
     assert "" == proxy.sslProxy
     assert "" == proxy.socksProxy