diff --git a/libcxx/docs/ReleaseNotes.rst b/libcxx/docs/ReleaseNotes.rst
--- a/libcxx/docs/ReleaseNotes.rst
+++ b/libcxx/docs/ReleaseNotes.rst
@@ -99,6 +99,7 @@
     - ``<chrono>``
     - ``<exception>``
     - ``<functional>``
+    - ``<iterator>``
     - ``<new>``
     - ``<typeinfo>``
     - ``<utility>``
diff --git a/libcxx/include/algorithm b/libcxx/include/algorithm
--- a/libcxx/include/algorithm
+++ b/libcxx/include/algorithm
@@ -1068,7 +1068,6 @@
 #include <cstddef>
 #include <cstring>
 #include <initializer_list>
-#include <iterator> // TODO: Remove this include
 #include <memory>
 #include <type_traits>
 #include <version>
diff --git a/libcxx/include/array b/libcxx/include/array
--- a/libcxx/include/array
+++ b/libcxx/include/array
@@ -120,7 +120,6 @@
 #include <__utility/move.h>
 #include <__utility/unreachable.h>
 #include <compare>
-#include <iterator> // TODO: Remove this include
 #include <stdexcept>
 #include <type_traits>
 #include <version>
diff --git a/libcxx/include/deque b/libcxx/include/deque
--- a/libcxx/include/deque
+++ b/libcxx/include/deque
@@ -182,7 +182,6 @@
 #include <__utility/swap.h>
 #include <compare>
 #include <initializer_list>
-#include <iterator> // TODO: Remove this include
 #include <limits>
 #include <stdexcept>
 #include <type_traits>
diff --git a/libcxx/include/ext/hash_map b/libcxx/include/ext/hash_map
--- a/libcxx/include/ext/hash_map
+++ b/libcxx/include/ext/hash_map
@@ -207,7 +207,6 @@
 #include <algorithm>
 #include <ext/__hash>
 #include <functional>
-#include <iterator> // TODO: Remove this include
 #include <stdexcept>
 #include <type_traits>
 
diff --git a/libcxx/include/ext/hash_set b/libcxx/include/ext/hash_set
--- a/libcxx/include/ext/hash_set
+++ b/libcxx/include/ext/hash_set
@@ -198,7 +198,6 @@
 #include <algorithm>
 #include <ext/__hash>
 #include <functional>
-#include <iterator> // TODO: Remove this include
 
 #if defined(__DEPRECATED) && __DEPRECATED
 #if defined(_LIBCPP_WARNING)
diff --git a/libcxx/include/forward_list b/libcxx/include/forward_list
--- a/libcxx/include/forward_list
+++ b/libcxx/include/forward_list
@@ -190,7 +190,6 @@
 #include <__iterator/next.h>
 #include <__utility/forward.h>
 #include <initializer_list>
-#include <iterator> // TODO: Remove this include
 #include <limits>
 #include <memory>
 #include <type_traits>
diff --git a/libcxx/include/list b/libcxx/include/list
--- a/libcxx/include/list
+++ b/libcxx/include/list
@@ -198,7 +198,6 @@
 #include <__utility/move.h>
 #include <__utility/swap.h>
 #include <initializer_list>
-#include <iterator> // TODO: Remove this include
 #include <limits>
 #include <memory>
 #include <type_traits>
diff --git a/libcxx/include/locale b/libcxx/include/locale
--- a/libcxx/include/locale
+++ b/libcxx/include/locale
@@ -208,7 +208,6 @@
 #include <cstdlib>
 #include <ctime>
 #include <ios>
-#include <iterator> // TODO: Remove this include
 #include <limits>
 #include <memory>
 #include <streambuf>
diff --git a/libcxx/include/map b/libcxx/include/map
--- a/libcxx/include/map
+++ b/libcxx/include/map
@@ -544,7 +544,6 @@
 #include <__utility/swap.h>
 #include <compare>
 #include <initializer_list>
-#include <iterator> // TODO: Remove this include
 #include <memory>
 #include <type_traits>
 #include <version>
diff --git a/libcxx/include/memory b/libcxx/include/memory
--- a/libcxx/include/memory
+++ b/libcxx/include/memory
@@ -864,7 +864,6 @@
 #include <cstdint>
 #include <cstring>
 #include <iosfwd>
-#include <iterator> // TODO: Remove this include
 #include <new>
 #include <stdexcept>
 #include <tuple>
diff --git a/libcxx/include/numeric b/libcxx/include/numeric
--- a/libcxx/include/numeric
+++ b/libcxx/include/numeric
@@ -147,7 +147,6 @@
 #include <__assert> // all public C++ headers provide the assertion handler
 #include <__config>
 #include <cmath> // for isnormal
-#include <iterator> // TODO: Remove this include
 #include <version>
 
 #include <__numeric/accumulate.h>
diff --git a/libcxx/include/ostream b/libcxx/include/ostream
--- a/libcxx/include/ostream
+++ b/libcxx/include/ostream
@@ -138,7 +138,6 @@
 #include <__config>
 #include <bitset>
 #include <ios>
-#include <iterator> // TODO: Remove this include
 #include <locale>
 #include <streambuf>
 #include <version>
diff --git a/libcxx/include/regex b/libcxx/include/regex
--- a/libcxx/include/regex
+++ b/libcxx/include/regex
@@ -775,7 +775,6 @@
 #include <compare>
 #include <deque>
 #include <initializer_list>
-#include <iterator> // TODO: Remove this include
 #include <memory>
 #include <stdexcept>
 #include <string>
diff --git a/libcxx/include/set b/libcxx/include/set
--- a/libcxx/include/set
+++ b/libcxx/include/set
@@ -485,7 +485,6 @@
 #include <__utility/forward.h>
 #include <compare>
 #include <initializer_list>
-#include <iterator> // TODO: Remove this include
 #include <version>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/span b/libcxx/include/span
--- a/libcxx/include/span
+++ b/libcxx/include/span
@@ -143,7 +143,6 @@
 #include <__utility/forward.h>
 #include <array>        // for array
 #include <cstddef>      // for byte
-#include <iterator> // TODO: Remove this include
 #include <limits>
 #include <type_traits>  // for remove_cv, etc
 #include <version>
diff --git a/libcxx/include/string b/libcxx/include/string
--- a/libcxx/include/string
+++ b/libcxx/include/string
@@ -545,7 +545,6 @@
 #include <cstring>
 #include <initializer_list>
 #include <iosfwd>
-#include <iterator> // TODO: Remove this include
 #include <limits>
 #include <memory>
 #include <stdexcept>
diff --git a/libcxx/include/string_view b/libcxx/include/string_view
--- a/libcxx/include/string_view
+++ b/libcxx/include/string_view
@@ -214,7 +214,6 @@
 #include <__string/char_traits.h>
 #include <compare>
 #include <iosfwd>
-#include <iterator> // TODO: Remove this include
 #include <limits>
 #include <stdexcept>
 #include <type_traits>
diff --git a/libcxx/include/unordered_map b/libcxx/include/unordered_map
--- a/libcxx/include/unordered_map
+++ b/libcxx/include/unordered_map
@@ -528,7 +528,6 @@
 #include <__node_handle>
 #include <__utility/forward.h>
 #include <compare>
-#include <iterator> // TODO: Remove this include
 #include <stdexcept>
 #include <tuple>
 #include <version>
diff --git a/libcxx/include/unordered_set b/libcxx/include/unordered_set
--- a/libcxx/include/unordered_set
+++ b/libcxx/include/unordered_set
@@ -473,7 +473,6 @@
 #include <__node_handle>
 #include <__utility/forward.h>
 #include <compare>
-#include <iterator> // TODO: Remove this include
 #include <version>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)