SketchUp - 3D for Everyone
FreeCAD - An open-source parametric 3D modeler
Autodesk AutoCAD - Autodesk AutoCAD is a commercial computer-aided design (CAD) and drafting software application.
ImplicitCAD - ImplicitCAD is a programmatic CAD program, implemented in Haskell.
MakerSCAD - Powerfull 3D design tool for 3D printing, virtual reality and game engine.
CadQuery - CadQuery is a parametric cad script framework