diff --git a/ci/linux_clang-latest_libcxx_asan_bazel.sh b/ci/linux_clang-latest_libcxx_asan_bazel.sh
index 196e5c1d..7203fc72 100755
--- a/ci/linux_clang-latest_libcxx_asan_bazel.sh
+++ b/ci/linux_clang-latest_libcxx_asan_bazel.sh
@@ -25,7 +25,7 @@ if [[ -z ${ABSEIL_ROOT:-} ]]; then
 fi
 
 if [[ -z ${STD:-} ]]; then
-  STD="c++11 c++14 c++17 c++20"
+  STD="c++14 c++17 c++20"
 fi
 
 if [[ -z ${COMPILATION_MODE:-} ]]; then
diff --git a/ci/linux_clang-latest_libcxx_bazel.sh b/ci/linux_clang-latest_libcxx_bazel.sh
index 39aecf58..11d4e41c 100755
--- a/ci/linux_clang-latest_libcxx_bazel.sh
+++ b/ci/linux_clang-latest_libcxx_bazel.sh
@@ -25,7 +25,7 @@ if [[ -z ${ABSEIL_ROOT:-} ]]; then
 fi
 
 if [[ -z ${STD:-} ]]; then
-  STD="c++11 c++14 c++17 c++20"
+  STD="c++14 c++17 c++20"
 fi
 
 if [[ -z ${COMPILATION_MODE:-} ]]; then
diff --git a/ci/linux_clang-latest_libcxx_tsan_bazel.sh b/ci/linux_clang-latest_libcxx_tsan_bazel.sh
index b0a1abff..74b4626c 100755
--- a/ci/linux_clang-latest_libcxx_tsan_bazel.sh
+++ b/ci/linux_clang-latest_libcxx_tsan_bazel.sh
@@ -25,7 +25,7 @@ if [[ -z ${ABSEIL_ROOT:-} ]]; then
 fi
 
 if [[ -z ${STD:-} ]]; then
-  STD="c++11 c++14 c++17 c++20"
+  STD="c++14 c++17 c++20"
 fi
 
 if [[ -z ${COMPILATION_MODE:-} ]]; then
diff --git a/ci/linux_clang-latest_libstdcxx_bazel.sh b/ci/linux_clang-latest_libstdcxx_bazel.sh
index 8550481b..b34929fc 100755
--- a/ci/linux_clang-latest_libstdcxx_bazel.sh
+++ b/ci/linux_clang-latest_libstdcxx_bazel.sh
@@ -25,7 +25,7 @@ if [[ -z ${ABSEIL_ROOT:-} ]]; then
 fi
 
 if [[ -z ${STD:-} ]]; then
-  STD="c++11 c++14 c++17"
+  STD="c++14 c++17"
 fi
 
 if [[ -z ${COMPILATION_MODE:-} ]]; then
diff --git a/ci/linux_gcc-floor_libstdcxx_bazel.sh b/ci/linux_gcc-floor_libstdcxx_bazel.sh
index 8b41b5d7..90461041 100755
--- a/ci/linux_gcc-floor_libstdcxx_bazel.sh
+++ b/ci/linux_gcc-floor_libstdcxx_bazel.sh
@@ -25,7 +25,7 @@ if [[ -z ${ABSEIL_ROOT:-} ]]; then
 fi
 
 if [[ -z ${STD:-} ]]; then
-  STD="c++11 c++14"
+  STD="c++14"
 fi
 
 if [[ -z ${COMPILATION_MODE:-} ]]; then
diff --git a/ci/linux_gcc-latest_libstdcxx_bazel.sh b/ci/linux_gcc-latest_libstdcxx_bazel.sh
index 3f7c71af..6346b662 100755
--- a/ci/linux_gcc-latest_libstdcxx_bazel.sh
+++ b/ci/linux_gcc-latest_libstdcxx_bazel.sh
@@ -25,7 +25,7 @@ if [[ -z ${ABSEIL_ROOT:-} ]]; then
 fi
 
 if [[ -z ${STD:-} ]]; then
-  STD="c++11 c++14 c++17 c++20"
+  STD="c++14 c++17 c++20"
 fi
 
 if [[ -z ${COMPILATION_MODE:-} ]]; then
diff --git a/ci/linux_gcc-latest_libstdcxx_cmake.sh b/ci/linux_gcc-latest_libstdcxx_cmake.sh
index eccb3818..ba65853f 100755
--- a/ci/linux_gcc-latest_libstdcxx_cmake.sh
+++ b/ci/linux_gcc-latest_libstdcxx_cmake.sh
@@ -23,7 +23,7 @@ fi
 source "${ABSEIL_ROOT}/ci/cmake_common.sh"
 
 if [[ -z ${ABSL_CMAKE_CXX_STANDARDS:-} ]]; then
-  ABSL_CMAKE_CXX_STANDARDS="11 14 17 20"
+  ABSL_CMAKE_CXX_STANDARDS="14 17 20"
 fi
 
 if [[ -z ${ABSL_CMAKE_BUILD_TYPES:-} ]]; then
diff --git a/ci/linux_gcc_alpine_cmake.sh b/ci/linux_gcc_alpine_cmake.sh
index bf2e1239..10540130 100755
--- a/ci/linux_gcc_alpine_cmake.sh
+++ b/ci/linux_gcc_alpine_cmake.sh
@@ -23,7 +23,7 @@ fi
 source "${ABSEIL_ROOT}/ci/cmake_common.sh"
 
 if [[ -z ${ABSL_CMAKE_CXX_STANDARDS:-} ]]; then
-  ABSL_CMAKE_CXX_STANDARDS="11 14 17"
+  ABSL_CMAKE_CXX_STANDARDS="14 17"
 fi
 
 if [[ -z ${ABSL_CMAKE_BUILD_TYPES:-} ]]; then
diff --git a/ci/macos_xcode_bazel.sh b/ci/macos_xcode_bazel.sh
index 8d69f1de..f6b9ec39 100755
--- a/ci/macos_xcode_bazel.sh
+++ b/ci/macos_xcode_bazel.sh
@@ -54,7 +54,8 @@ fi
 
 ${BAZEL_BIN} test ... \
   --copt="-DGTEST_REMOVE_LEGACY_TEST_CASEAPI_=1" \
-  --copt=-Werror \
+  --copt="-Werror" \
+  --cxxopt="-std=c++14" \
   --keep_going \
   --show_timestamps \
   --test_env="TZDIR=${ABSEIL_ROOT}/absl/time/internal/cctz/testdata/zoneinfo" \
diff --git a/ci/macos_xcode_cmake.sh b/ci/macos_xcode_cmake.sh
index 71ea2534..97988631 100755
--- a/ci/macos_xcode_cmake.sh
+++ b/ci/macos_xcode_cmake.sh
@@ -47,7 +47,7 @@ for compilation_mode in ${ABSL_CMAKE_BUILD_TYPES}; do
       -DBUILD_SHARED_LIBS=${build_shared} \
       -DABSL_BUILD_TESTING=ON \
       -DCMAKE_BUILD_TYPE=${compilation_mode} \
-      -DCMAKE_CXX_STANDARD=11 \
+      -DCMAKE_CXX_STANDARD=14 \
       -DCMAKE_MODULE_LINKER_FLAGS="-Wl,--no-undefined" \
       -DABSL_GOOGLETEST_DOWNLOAD_URL="${ABSL_GOOGLETEST_DOWNLOAD_URL}"
     time cmake --build .