diff --git a/.github/workflows/build-with-clang.yml b/.github/workflows/build-with-clang.yml
index 77bcdd3f..7bec94af 100644
--- a/.github/workflows/build-with-clang.yml
+++ b/.github/workflows/build-with-clang.yml
@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        python: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
+        python: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.14t", "3.15"]
         numpy_version: ["'numpy>=2'"]
 
     env:
diff --git a/.github/workflows/build-with-standard-clang.yml b/.github/workflows/build-with-standard-clang.yml
index fe77b903..853cf627 100644
--- a/.github/workflows/build-with-standard-clang.yml
+++ b/.github/workflows/build-with-standard-clang.yml
@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        python: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
+        python: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.14t", "3.15"]
         numpy_version: ["'numpy>=2'"]
 
     env:
diff --git a/.github/workflows/build_pip.yml b/.github/workflows/build_pip.yml
index 1104584b..1fdd99ae 100644
--- a/.github/workflows/build_pip.yml
+++ b/.github/workflows/build_pip.yml
@@ -33,6 +33,12 @@ jobs:
           - python: "3.14"
             python_spec: "3.14.* *_cp314t"
             use_pre: "--pre"
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            use_pre: ""
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            use_pre: "--pre"
 
     steps:
       - name: Checkout repo
diff --git a/.github/workflows/conda-package-cf.yml b/.github/workflows/conda-package-cf.yml
index 52b680ef..04c68592 100644
--- a/.github/workflows/conda-package-cf.yml
+++ b/.github/workflows/conda-package-cf.yml
@@ -39,6 +39,10 @@ jobs:
             numpy: "2.3"
             python_spec: "3.14.* *_cp314t"
             python_tag: "3.14t"
+          - python: "3.15"
+            numpy: "2.5"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
     steps:
       - name: Cancel Previous Runs
         uses: styfle/cancel-workflow-action@d07a454dad7609a92316b57b23c9ccfd4f59af66 # 0.13.1
@@ -125,6 +129,12 @@ jobs:
             numpy: 'numpy">=2"'
             experimental: false
             runner: ubuntu-latest
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
+            numpy: 'numpy">=2"'
+            experimental: false
+            runner: ubuntu-latest
     continue-on-error: ${{ matrix.experimental }}
     env:
       CHANNELS: -c conda-forge --override-channels
@@ -225,6 +235,10 @@ jobs:
             numpy: "2.3"
             python_spec: "3.14.* *_cp314t"
             python_tag: "3.14t"
+          - python: "3.15"
+            numpy: "2.5"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
     env:
       conda-bld: C:\Miniconda\conda-bld\win-64\
     steps:
@@ -305,6 +319,12 @@ jobs:
             numpy: 'numpy">=2"'
             experimental: false
             runner: windows-latest
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
+            numpy: 'numpy">=2"'
+            experimental: false
+            runner: windows-latest
     continue-on-error: ${{ matrix.experimental }}
     env:
       workdir: '${{ github.workspace }}'
diff --git a/.github/workflows/conda-package.yml b/.github/workflows/conda-package.yml
index e0d85a1e..39152e91 100644
--- a/.github/workflows/conda-package.yml
+++ b/.github/workflows/conda-package.yml
@@ -39,6 +39,10 @@ jobs:
             numpy: "2.3"
             python_spec: "3.14.* *_cp314t"
             python_tag: "3.14t"
+          - python: "3.15"
+            numpy: "2.5"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
     steps:
       - name: Cancel Previous Runs
         uses: styfle/cancel-workflow-action@d07a454dad7609a92316b57b23c9ccfd4f59af66 # 0.13.1
@@ -135,6 +139,12 @@ jobs:
             numpy: 'numpy">=2"'
             experimental: false
             runner: ubuntu-latest
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
+            numpy: 'numpy">=2"'
+            experimental: false
+            runner: ubuntu-latest
     continue-on-error: ${{ matrix.experimental }}
     env:
       CHANNELS: -c https://software.repos.intel.com/python/conda -c conda-forge --override-channels
@@ -235,6 +245,10 @@ jobs:
             numpy: "2.3"
             python_spec: "3.14.* *_cp314t"
             python_tag: "3.14t"
+          - python: "3.15"
+            numpy: "2.5"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
     env:
       conda-bld: C:\Miniconda\conda-bld\win-64\
     steps:
@@ -322,6 +336,12 @@ jobs:
             numpy: 'numpy">=2"'
             experimental: false
             runner: windows-latest
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
+            numpy: 'numpy">=2"'
+            experimental: false
+            runner: windows-latest
     continue-on-error: ${{ matrix.experimental }}
     env:
       workdir: '${{ github.workspace }}'
diff --git a/AGENTS.md b/AGENTS.md
index 01525618..840cac24 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -41,7 +41,7 @@ CC=icx pip install --no-deps --no-build-isolation .  # clang is also supported i
 
 ## CI/CD
 - **Platforms:** Linux, Windows
-- **Python versions:** 3.10, 3.11, 3.12, 3.13, 3.14
+- **Python versions:** 3.10, 3.11, 3.12, 3.13, 3.14, 3.15
 - **Workflows:** `.github/workflows/`
   - `conda-package.yml` — main conda build/test pipeline
   - `conda-package-cf.yml` — conda-forge-oriented build/test pipeline
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 14f0aa29..f0da8acf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [dev] - YYYY-MM-DD
 
 ### Added
+* Enabled support of Python 3.15 [gh-279](https://github.com/IntelPython/mkl_umath/pull/279)
 * Added support for free-threaded (GIL-disabled) CPython builds: the Cython extension is compiled with `freethreading_compatible=True` and `_ufuncs` declares `Py_MOD_GIL_NOT_USED`, so importing `mkl_umath` no longer re-enables the GIL [gh-255](https://github.com/IntelPython/mkl_umath/pull/255)
 
 ### Changed
diff --git a/conda-recipe/AGENTS.md b/conda-recipe/AGENTS.md
index 08182026..c5bd2f93 100644
--- a/conda-recipe/AGENTS.md
+++ b/conda-recipe/AGENTS.md
@@ -11,7 +11,7 @@ Conda package build recipe for Intel channel distribution.
 
 ## Build configuration
 - **Channels:** `https://software.repos.intel.com/python/conda`, `conda-forge`
-- **Python versions:** 3.10, 3.11, 3.12, 3.13, 3.14
+- **Python versions:** 3.10, 3.11, 3.12, 3.13, 3.14, 3.15
 - **Build system:** meson-python (via `python -m build`)
 - **Compilers:** Intel C compiler (icx)
 - **Dependencies:** mkl-devel, intel-openmp, dpcpp_{linux,win}-64, numpy
diff --git a/mkl_umath/tests/AGENTS.md b/mkl_umath/tests/AGENTS.md
index abc3d058..a9f4d5c9 100644
--- a/mkl_umath/tests/AGENTS.md
+++ b/mkl_umath/tests/AGENTS.md
@@ -20,7 +20,7 @@ pytest mkl_umath/tests/
 
 ## CI integration
 - Tests run in conda-package.yml workflow
-- Separate test jobs per Python version (3.10-3.14)
+- Separate test jobs per Python version (3.10-3.15)
 - Linux + Windows platforms
 
 ## Adding tests
diff --git a/pyproject.toml b/pyproject.toml
index 13f65fb4..64a913ae 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,6 +50,7 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3.14",
+  "Programming Language :: Python :: 3.15",
   "Programming Language :: Python :: Free Threading :: 2 - Beta",
   "Programming Language :: Python :: Implementation :: CPython",
   "Topic :: Software Development",
@@ -65,7 +66,7 @@ keywords = ["mkl_umath"]
 license = "BSD-3-Clause"
 name = "mkl_umath"
 readme = { file = "README.md", content-type = "text/markdown" }
-requires-python = ">=3.10,<3.15"
+requires-python = ">=3.10,<3.16"
 
 [project.optional-dependencies]
 test = ["pytest"]