diff -r 1b58f14f5d60 Doc/library/html.rst
--- a/Doc/library/html.rst	Wed Nov 20 17:44:28 2013 +0200
+++ b/Doc/library/html.rst	Wed Nov 20 20:19:25 2013 +0200
@@ -31,6 +31,19 @@
 
    .. versionadded:: 3.4
 
+.. function:: htmlcharrefreplace_errors(exception)
+
+   Implements the ``htmlcharrefreplace`` error handling (for encoding only): the
+   unencodable character is replaced by an appropriate HTML named or numeric
+   character reference.  This error handler is not registered by default, you
+   should register it with :meth:`codecs.register_error`::
+
+        >>> codecs.register_error('htmlcharrefreplace', htmlcharrefreplace_errors)
+        >>> '∀ x∈ℜ'.encode('ascii', 'htmlcharrefreplace')
+        b'∀ x∈ℜ'
+
+   .. versionadded:: 3.4
+
 --------------
 
 Submodules in the ``html`` package are:
diff -r 1b58f14f5d60 Lib/html/__init__.py
--- a/Lib/html/__init__.py	Wed Nov 20 17:44:28 2013 +0200
+++ b/Lib/html/__init__.py	Wed Nov 20 20:19:25 2013 +0200
@@ -3,7 +3,7 @@
 """
 
 import re as _re
-from html.entities import html5 as _html5
+from html.entities import codepoint2name as _codepoint2name, html5 as _html5
 
 
 __all__ = ['escape', 'unescape']
@@ -130,3 +130,21 @@
     if '&' not in s:
         return s
     return _charref.sub(_replace_charref, s)
+
+
+def htmlcharrefreplace_errors(exception):
+    """
+    Implements the 'htmlcharrefreplace' error handling, which replaces an
+    unencodable character with the appropriate HTML named or numeric
+    character reference.
+    """
+    if not isinstance(exception, UnicodeEncodeError):
+        raise exception
+    replace = []
+    for c in exception.object[exception.start:exception.end]:
+        n = ord(c)
+        try:
+            replace.append(r'&%s;' % _codepoint2name[n])
+        except KeyError:
+            replace.append(r'&#%d;' % n)
+    return ''.join(replace), exception.end
diff -r 1b58f14f5d60 Lib/test/test_html.py
--- a/Lib/test/test_html.py	Wed Nov 20 17:44:28 2013 +0200
+++ b/Lib/test/test_html.py	Wed Nov 20 20:19:25 2013 +0200
@@ -2,6 +2,7 @@
 Tests for the html module functions.
 """
 
+import codecs
 import html
 import unittest
 from test.support import run_unittest
@@ -99,6 +100,14 @@
               'ÉricÉric&alphacentauriαcentauri')
         check('&co;', '&co;')
 
+    def test_htmlcharrefreplace(self):
+        codecs.register_error('htmlcharrefreplace',
+                              html.htmlcharrefreplace_errors)
+        self.assertEqual(
+            '[$\xa5\u20a3\u20ac\U0001d56b]'.encode('latin1',
+                                                   'htmlcharrefreplace'),
+            b'[$\xa5₣€𝕫]')
+
 
 if __name__ == '__main__':
     unittest.main()