diff --git a/CMakeLists.txt b/CMakeLists.txt
index 31b38a6d8b..b057b89d75 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -209,6 +209,16 @@ if(USE_GLPK)
   message(STATUS "Build GLPK: ${BUILD_GLPK}")
 endif()
 
+## HiGHS
+# see: https://github.com/ERGO-Code/HiGHS
+CMAKE_DEPENDENT_OPTION(USE_HIGHS "Use the HiGHS solver" ON "BUILD_CXX" OFF)
+message(STATUS "HiGHS support: ${USE_HIGHS}")
+if(USE_HIGHS)
+  CMAKE_DEPENDENT_OPTION(BUILD_HIGHS "Build the HiGHS dependency Library" OFF
+    "NOT BUILD_DEPS" ON)
+  message(STATUS "Build HiGHS: ${BUILD_HIGHS}")
+endif()
+
 ## PDLP
 CMAKE_DEPENDENT_OPTION(USE_PDLP "Use the PDLP solver" ON "BUILD_CXX" OFF)
 message(STATUS "PDLP support: ${USE_PDLP}")
diff --git a/cmake/README.md b/cmake/README.md
index f31f1137ea..faa89d125e 100644
--- a/cmake/README.md
+++ b/cmake/README.md
@@ -113,6 +113,9 @@ below).
     *   COIN-OR Cbc (`BUILD_Cbc`),<br>
     note: You can disable the support of COIN-OR solvers (i.e. Cbc and Clp solver)
     by using `-DUSE_COINOR=OFF` (`ON` by default).
+*   HIGHS (`BUILD_HIGHS`),<br>
+    note: You can disable the support of HiGHS solver
+    by using `-DUSE_HIGHS=OFF` (`ON` by default).
 *   SCIP (`BUILD_SCIP`),<br>
     note: You can disable the support of SCIP solver
     by using `-DUSE_SCIP=OFF` (`ON` by default).<br>
@@ -204,6 +207,8 @@ cmake -S. -Bbuild -LH
 | `BUILD_Cbc`  | OFF\* | Static build the Cbc library<br>**Forced** to ON if `USE_COINOR=ON` **and** `BUILD_DEPS=ON` |
 | `USE_GLPK`   | OFF\* | Enable GLPK support<br>**Forced** to OFF if `BUILD_CXX=OFF` |
 | `BUILD_GLPK` | OFF\* | Static build the GLPK libraries<br>**Forced** to ON if `USE_GLPK=ON` **and** `BUILD_DEPS=ON` |
+| `USE_HIGHS`  | ON\* | Enable HIGHS support<br>**Forced** to OFF if `BUILD_CXX=OFF` |
+| `BUILD_HIGHS` | OFF\* | Static build the HiGHS libraries<br>**Forced** to ON if `USE_HIGHS=ON` **and** `BUILD_DEPS=ON` |
 | `USE_SCIP`   | ON\*  | Enable SCIP support<br>**Forced** to OFF if `BUILD_CXX=OFF` |
 | `BUILD_SCIP` | OFF\* | Static build the SCIP libraries<br>**Forced** to ON if `USE_SCIP=ON` **and** `BUILD_DEPS=ON` |
 | `USE_CPLEX`  | OFF | Enable CPLEX support |
diff --git a/cmake/cpp.cmake b/cmake/cpp.cmake
index 5690b223ff..3ec53b6c4a 100644
--- a/cmake/cpp.cmake
+++ b/cmake/cpp.cmake
@@ -45,6 +45,9 @@ if(USE_GLPK)
   list(APPEND OR_TOOLS_COMPILE_DEFINITIONS "USE_GLPK")
   set(GLPK_DIR glpk)
 endif()
+if(USE_HIGHS)
+  list(APPEND OR_TOOLS_COMPILE_DEFINITIONS "USE_HIGHS")
+endif()
 if(USE_PDLP)
   list(APPEND OR_TOOLS_COMPILE_DEFINITIONS "USE_PDLP")
   set(PDLP_DIR pdlp)
@@ -157,6 +160,7 @@ target_link_libraries(${PROJECT_NAME} PUBLIC
   ${COINOR_DEPS}
   $<$<BOOL:${USE_CPLEX}>:CPLEX::CPLEX>
   $<$<BOOL:${USE_GLPK}>:GLPK::GLPK>
+  $<$<BOOL:${USE_HIGHS}>:HIGHS::HIGHS>
   ${PDLP_DEPS}
   $<$<BOOL:${USE_SCIP}>:libscip>
   $<$<BOOL:${USE_XPRESS}>:XPRESS::XPRESS>
diff --git a/cmake/dependencies/CMakeLists.txt b/cmake/dependencies/CMakeLists.txt
index 654dd6d4c2..e92638a1c5 100644
--- a/cmake/dependencies/CMakeLists.txt
+++ b/cmake/dependencies/CMakeLists.txt
@@ -190,6 +190,23 @@ if(BUILD_GLPK)
   message(CHECK_PASS "fetched")
 endif()
 
+# ##############################################################################
+# HiGHS
+# ##############################################################################
+if(BUILD_HIGHS)
+  message(CHECK_START "Fetching HiGHS")
+  list(APPEND CMAKE_MESSAGE_INDENT "  ")
+  set(CI OFF) # disable CI tests
+  FetchContent_Declare(
+    highs
+    GIT_REPOSITORY "https://github.com/ERGO-Code/HiGHS.git"
+    GIT_TAG        "v1.2.2"
+  )
+  FetchContent_MakeAvailable(highs)
+  list(POP_BACK CMAKE_MESSAGE_INDENT)
+  message(CHECK_PASS "fetched")
+endif()
+
 # ##############################################################################
 # SCIP
 # ##############################################################################
diff --git a/cmake/deps.cmake b/cmake/deps.cmake
index 0f7ea73b8f..305e12a409 100644
--- a/cmake/deps.cmake
+++ b/cmake/deps.cmake
@@ -102,6 +102,12 @@ if(USE_GLPK)
   endif()
 endif()
 
+if(USE_HIGHS)
+  if(NOT BUILD_HIGHS)
+    find_package(HIGHS REQUIRED)
+  endif()
+endif()
+
 if(USE_PDLP)
   if(NOT BUILD_PDLP)
     find_package(PDLP REQUIRED)
diff --git a/cmake/docs/cmake.dot b/cmake/docs/cmake.dot
index 3e5170284d..a5bb649628 100644
--- a/cmake/docs/cmake.dot
+++ b/cmake/docs/cmake.dot
@@ -127,6 +127,17 @@ digraph CMake {
         label = "GLPK Solver\n(-DUSE_GLPK=ON)";
       }
 
+      subgraph clusterHIGHSSolver {
+        subgraph clusterHIGHS {
+          HIGHS [label="highs::highs"];
+
+          color=royalblue;
+          label = "ERGO-Code/HIGHS.git";
+        }
+        color=royalblue;
+        label = "HIGHS Solver\n(-DUSE_HIGHS=ON)";
+      }
+
       subgraph clusterSCIPSolver {
         subgraph clusterSCIP {
           SCIP [label="scip::scip"];
diff --git a/cmake/docs/deps.dot b/cmake/docs/deps.dot
index 1ef7666b4a..7ad3fc8bb9 100644
--- a/cmake/docs/deps.dot
+++ b/cmake/docs/deps.dot
@@ -123,6 +123,17 @@ digraph CMakeDeps {
     label = "-DUSE_GLPK=ON AND -DBUILD_GLPK=ON";
   }
 
+  subgraph clusterHIGHSSolver {
+    subgraph clusterHIGHS {
+      HIGHS [label="highs::highs"];
+
+      color=royalblue;
+      label = "ERGO-Code/HIGHS.git";
+    }
+    color=royalblue;
+    label = "-DUSE_HIGHS=ON AND -DBUILD_HIGHS=ON";
+  }
+
   subgraph clusterSCIPSolver {
     subgraph clusterSCIP {
       SCIP [label="scip::scip"];
diff --git a/cmake/dotnet.cmake b/cmake/dotnet.cmake
index 1374cec43d..49df49ae08 100644
--- a/cmake/dotnet.cmake
+++ b/cmake/dotnet.cmake
@@ -229,6 +229,9 @@ endif()
 if(USE_GLPK)
   list(APPEND FLAGS "-DUSE_GLPK")
 endif()
+if(USE_HIGHS)
+  list(APPEND FLAGS "-DUSE_HIGHS")
+endif()
 if(USE_PDLP)
   list(APPEND FLAGS "-DUSE_PDLP")
 endif()
diff --git a/cmake/java.cmake b/cmake/java.cmake
index 60dfc1c72f..dace01649e 100644
--- a/cmake/java.cmake
+++ b/cmake/java.cmake
@@ -231,6 +231,9 @@ endif()
 if(USE_GLPK)
   list(APPEND FLAGS "-DUSE_GLPK")
 endif()
+if(USE_HIGHS)
+  list(APPEND FLAGS "-DUSE_HIGHS")
+endif()
 if(USE_PDLP)
   list(APPEND FLAGS "-DUSE_PDLP")
 endif()
diff --git a/cmake/ortoolsConfig.cmake.in b/cmake/ortoolsConfig.cmake.in
index 88cacd09f0..344e5a4e3f 100644
--- a/cmake/ortoolsConfig.cmake.in
+++ b/cmake/ortoolsConfig.cmake.in
@@ -53,6 +53,12 @@ if(@USE_GLPK@)
   endif()
 endif()
 
+if(@USE_HIGHS@)
+  if(NOT HIGHS_FOUND AND NOT TARGET HIGHS::HIGHS)
+    find_dependency(HIGHS REQUIRED ${CONFIG_FLAG})
+  endif()
+endif()
+
 if(@USE_PDLP@)
   if(NOT Eigen3_FOUND AND NOT TARGET Eigen3::Eigen)
     find_dependency(Eigen3 REQUIRED)
diff --git a/cmake/python.cmake b/cmake/python.cmake
index 46224d4467..caa4c96499 100644
--- a/cmake/python.cmake
+++ b/cmake/python.cmake
@@ -223,6 +223,9 @@ endif()
 if(USE_GLPK)
   list(APPEND FLAGS "-DUSE_GLPK")
 endif()
+if(USE_HIGHS)
+  list(APPEND FLAGS "-DUSE_HIGHS")
+endif()
 if(USE_PDLP)
   list(APPEND FLAGS "-DUSE_PDLP")
 endif()
diff --git a/makefiles/Makefile.cpp.mk b/makefiles/Makefile.cpp.mk
index c83c90778b..2a43d0bece 100644
--- a/makefiles/Makefile.cpp.mk
+++ b/makefiles/Makefile.cpp.mk
@@ -35,6 +35,7 @@ endif
 BUILD_TYPE ?= Release
 USE_COINOR ?= ON
 USE_GLPK ?= OFF
+USE_HIGHS ?= OFF
 USE_PDLP := ON # OFF not supported
 USE_SCIP ?= ON
 USE_CPLEX ?= OFF
@@ -65,6 +66,7 @@ third_party:
  -DBUILD_SAMPLES=OFF \
  -DUSE_COINOR=$(USE_COINOR) \
  -DUSE_GLPK=$(USE_GLPK) \
+ -DUSE_HIGHS=$(USE_HIGHS) \
  -DUSE_PDLP=$(USE_PDLP) \
  -DUSE_SCIP=$(USE_SCIP) \
  -DUSE_CPLEX=$(USE_CPLEX) \
diff --git a/ortools/linear_solver/CMakeLists.txt b/ortools/linear_solver/CMakeLists.txt
index 830738db2c..8ea6ddab72 100644
--- a/ortools/linear_solver/CMakeLists.txt
+++ b/ortools/linear_solver/CMakeLists.txt
@@ -39,6 +39,7 @@ target_link_libraries(${NAME} PRIVATE
   $<$<BOOL:${USE_COINOR}>:Coin::Clp>
   $<$<BOOL:${USE_CPLEX}>:CPLEX::CPLEX>
   $<$<BOOL:${USE_GLPK}>:GLPK::GLPK>
+  $<$<BOOL:${USE_HIGHS}>:HIGHS::HIGHS>
   $<$<BOOL:${USE_PDLP}>:Eigen3::Eigen>
   $<$<BOOL:${USE_SCIP}>:libscip>
   $<$<BOOL:${USE_XPRESS}>:XPRESS::XPRESS>
diff --git a/ortools/linear_solver/linear_solver.cc b/ortools/linear_solver/linear_solver.cc
index 9352ee8902..c171536763 100644
--- a/ortools/linear_solver/linear_solver.cc
+++ b/ortools/linear_solver/linear_solver.cc
@@ -373,6 +373,9 @@ extern MPSolverInterface* BuildCBCInterface(MPSolver* const solver);
 #if defined(USE_GLPK)
 extern MPSolverInterface* BuildGLPKInterface(bool mip, MPSolver* const solver);
 #endif
+#if defined(USE_HIGHS)
+extern MPSolverInterface* BuildHIGHSInterface(bool mip, MPSolver* const solver);
+#endif
 extern MPSolverInterface* BuildBopInterface(MPSolver* const solver);
 extern MPSolverInterface* BuildGLOPInterface(MPSolver* const solver);
 extern MPSolverInterface* BuildPdlpInterface(MPSolver* const solver);
@@ -408,6 +411,12 @@ MPSolverInterface* BuildSolverInterface(MPSolver* const solver) {
     case MPSolver::GLPK_MIXED_INTEGER_PROGRAMMING:
       return BuildGLPKInterface(true, solver);
 #endif
+#if defined(USE_HIGHS)
+    case MPSolver::HIGHS_LINEAR_PROGRAMMING:
+      return BuildHIGHSInterface(false, solver);
+    case MPSolver::HIGHS_MIXED_INTEGER_PROGRAMMING:
+      return BuildHIGHSInterface(true, solver);
+#endif
 #if defined(USE_CLP) || defined(USE_CBC)
     case MPSolver::CLP_LINEAR_PROGRAMMING:
       return BuildCLPInterface(solver);