CMAKE_PROJECT_NAME — CMake 4.3.0 Documentation

# CMAKE_PROJECT_NAME

The name of the top level project.

This variable holds the name of the project as specified in the top level CMakeLists.txt file by a `project()` command. In the event that the top level CMakeLists.txt contains multiple `project()` calls, the most recently called one from that top level CMakeLists.txt will determine the name that `CMAKE_PROJECT_NAME` contains. For example, consider the following top level CMakeLists.txt:

    cmake_minimum_required(VERSION 3.0)
    project(First)
    project(Second)
    add_subdirectory(sub)
    project(Third)

And `sub/CMakeLists.txt` with the following contents:

    project(SubProj)
    message("CMAKE_PROJECT_NAME = ${CMAKE_PROJECT_NAME}")

The most recently seen `project()` command from the top level CMakeLists.txt would be `project(Second)`, so this will print:

    CMAKE_PROJECT_NAME = Second

To obtain the name from the most recent call to `project()` in the current directory scope or above, see the `PROJECT_NAME` variable.