GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Gitea - A painless self-hosted Git service
Gitstack - GitStack is a free software that let you setup your own private Git server on Windows.
django-git - A simple Gitweb replacement built with Django.
Bonobo Git Server - Set up your own self hosted git server on IIS for Windows.
Gitolite - Setup git hosting on a central server, with fine-grained access control