diff --git a/libcxx/utils/ci/Dockerfile b/libcxx/utils/ci/Dockerfile
--- a/libcxx/utils/ci/Dockerfile
+++ b/libcxx/utils/ci/Dockerfile
@@ -38,6 +38,9 @@
 # Install various tools used by the build or the test suite
 RUN apt-get update && apt-get install -y ninja-build python3 python3-sphinx python3-distutils python3-psutil git gdb
 
+# Install dependencies required to run the LLDB data formatter tests
+RUN apt-get update && apt-get install -y python3 python3-dev libpython3-dev uuid-dev libncurses5-dev swig3.0 libxml2-dev libedit-dev
+
 # Locales for gdb and localization tests
 RUN apt-get update && apt-get install -y language-pack-en language-pack-fr \
                                          language-pack-ja language-pack-ru \
diff --git a/libcxx/utils/ci/buildkite-pipeline.yml b/libcxx/utils/ci/buildkite-pipeline.yml
--- a/libcxx/utils/ci/buildkite-pipeline.yml
+++ b/libcxx/utils/ci/buildkite-pipeline.yml
@@ -679,6 +679,22 @@
           limit: 2
     timeout_in_minutes: 120
 
+    - label: "LLDB Data Formatters"
+      command: "libcxx/utils/ci/run-buildbot check-lldb-data-formatters"
+      artifact_paths:
+        - "**/test-results.xml"
+      env:
+          CC: "clang-${LLVM_HEAD_VERSION}"
+          CXX: "clang++-${LLVM_HEAD_VERSION}"
+      agents:
+        queue: "libcxx-builders"
+        os: "linux"
+      retry:
+        automatic:
+          - exit_status: -1  # Agent was lost
+            limit: 2
+      timeout_in_minutes: 120
+
   # Tests on non-Unix platforms
   - group: ":windows: Windows"
     steps:
diff --git a/libcxx/utils/ci/run-buildbot b/libcxx/utils/ci/run-buildbot
--- a/libcxx/utils/ci/run-buildbot
+++ b/libcxx/utils/ci/run-buildbot
@@ -463,6 +463,20 @@
     generate-cmake
     check-cxx-benchmarks
 ;;
+check-lldb-data-formatters)
+    clean
+    ${CMAKE} \
+        -S "${MONOREPO_ROOT}/llvm" \
+        -B "${BUILD_DIR}" \
+        -GNinja -DCMAKE_MAKE_PROGRAM="${NINJA}" \
+        -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+        -DLLVM_ENABLE_ASSERTIONS=ON \
+        -DLLDB_ENABLE_PYTHON=ON \
+        -DLLVM_ENABLE_PROJECTS='llvm;clang;lldb' \
+        -DLLVM_ENABLE_RUNTIMES='libcxx;libcxxabi'
+
+    ${NINJA} -C "${BUILD_DIR}" check-lldb-api-functionalities-data-formatter-data-formatter-stl-libcxx
+;;
 documentation)
     clean
     generate-cmake -DLLVM_ENABLE_SPHINX=ON