diff --git a/ci/test/00_setup_env_native_nowallet_libbitcoinkernel.sh b/ci/test/00_setup_env_native_nowallet_libbitcoinkernel.sh
index 58561e55204..9f7704a923e 100755
--- a/ci/test/00_setup_env_native_nowallet_libbitcoinkernel.sh
+++ b/ci/test/00_setup_env_native_nowallet_libbitcoinkernel.sh
@@ -7,10 +7,10 @@
 export LC_ALL=C.UTF-8
 
 export CONTAINER_NAME=ci_native_nowallet_libbitcoinkernel
-export CI_IMAGE_NAME_TAG="mirror.gcr.io/debian:bookworm"
-# Use minimum supported python3.10 (or best-effort 3.11) and clang-16, see doc/dependencies.md
-export PACKAGES="python3-zmq python3-pip clang-16 llvm-16 libc++abi-16-dev libc++-16-dev"
+export CI_IMAGE_NAME_TAG="mirror.gcr.io/ubuntu:24.04"
+# Use minimum supported python3.10 (or best-effort 3.12) and clang-17, see doc/dependencies.md
+export PACKAGES="python3-zmq python3-pip clang-17 llvm-17 libc++abi-17-dev libc++-17-dev"
 export PIP_PACKAGES="--break-system-packages pycapnp"
-export DEP_OPTS="NO_WALLET=1 CC=clang-16 CXX='clang++-16 -stdlib=libc++'"
+export DEP_OPTS="NO_WALLET=1 CC=clang-17 CXX='clang++-17 -stdlib=libc++'"
 export GOAL="install"
 export BITCOIN_CONFIG="-DREDUCE_EXPORTS=ON -DBUILD_UTIL_CHAINSTATE=ON -DBUILD_KERNEL_LIB=ON -DBUILD_SHARED_LIBS=ON"
diff --git a/doc/dependencies.md b/doc/dependencies.md
index 93916aaf5dc..77391f74ae9 100644
--- a/doc/dependencies.md
+++ b/doc/dependencies.md
@@ -10,7 +10,7 @@ Bitcoin Core requires one of the following compilers.
 
 | Dependency | Minimum required |
 | --- | --- |
-| [Clang](https://clang.llvm.org) | [16.0](https://github.com/bitcoin/bitcoin/pull/30263) |
+| [Clang](https://clang.llvm.org) | [17.0](https://github.com/bitcoin/bitcoin/pull/33555) |
 | [GCC](https://gcc.gnu.org) | [11.1](https://github.com/bitcoin/bitcoin/pull/29091) |
 
 ## Required
diff --git a/doc/release-notes-33555.md b/doc/release-notes-33555.md
new file mode 100644
index 00000000000..a11af34fdfc
--- /dev/null
+++ b/doc/release-notes-33555.md
@@ -0,0 +1,5 @@
+Build System
+------------
+
+- The minimum supported Clang compiler version has been raised to 17.0
+  (#33555).
diff --git a/src/test/arith_uint256_tests.cpp b/src/test/arith_uint256_tests.cpp
index 37a39adb9cc..38ff46cc6b0 100644
--- a/src/test/arith_uint256_tests.cpp
+++ b/src/test/arith_uint256_tests.cpp
@@ -580,20 +580,6 @@ BOOST_AUTO_TEST_CASE(conversion)
 
 BOOST_AUTO_TEST_CASE(operator_with_self)
 {
-    /* Clang 16 and earlier detects v -= v and v /= v as self-assignments
-       to 0 and 1 respectively.
-       See: https://github.com/llvm/llvm-project/issues/42469
-       and the fix in commit c5302325b2a62d77cf13dd16cd5c19141862fed0 .
-
-       This makes some sense for arithmetic classes, but could be considered a bug
-       elsewhere. Disable the warning here so that the code can be tested, but the
-       warning should remain on as there will likely always be a better way to
-       express this.
-    */
-#if defined(__clang__)
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wself-assign-overloaded"
-#endif
     arith_uint256 v{2};
     v *= v;
     BOOST_CHECK_EQUAL(v, arith_uint256{4});
@@ -603,9 +589,6 @@ BOOST_AUTO_TEST_CASE(operator_with_self)
     BOOST_CHECK_EQUAL(v, arith_uint256{2});
     v -= v;
     BOOST_CHECK_EQUAL(v, arith_uint256{0});
-#if defined(__clang__)
-#pragma clang diagnostic pop
-#endif
 }
 
 BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/fuzz/muhash.cpp b/src/test/fuzz/muhash.cpp
index 922c6ff8d4b..fa0fe49f414 100644
--- a/src/test/fuzz/muhash.cpp
+++ b/src/test/fuzz/muhash.cpp
@@ -199,19 +199,7 @@ FUZZ_TARGET(muhash)
         },
         [&] {
             // Test that dividing a MuHash by itself brings it back to its initial state
-
-            // See note about clang + self-assignment in test/uint256_tests.cpp
-            #if defined(__clang__)
-            #    pragma clang diagnostic push
-            #    pragma clang diagnostic ignored "-Wself-assign-overloaded"
-            #endif
-
             muhash /= muhash;
-
-            #if defined(__clang__)
-            #    pragma clang diagnostic pop
-            #endif
-
             muhash.Finalize(out);
             out2 = initial_state_hash;
         },
diff --git a/src/util/overloaded.h b/src/util/overloaded.h
index 5bb4b4e5636..63c7764a298 100644
--- a/src/util/overloaded.h
+++ b/src/util/overloaded.h
@@ -14,9 +14,6 @@ namespace util {
 //! Implementation comes from and example usage can be found at
 //! https://en.cppreference.com/w/cpp/utility/variant/visit#Example
 template<class... Ts> struct Overloaded : Ts... { using Ts::operator()...; };
-
-//! Explicit deduction guide (not needed after clang-17)
-template<class... Ts> Overloaded(Ts...) -> Overloaded<Ts...>;
 } // namespace util
 
 #endif // BITCOIN_UTIL_OVERLOADED_H