Computational Geometry: Theory and Applications: Elsevier journal edited by Jörg-Rüdiger Sack and Kurt Mehlhorn.
Discrete and Computational Geometry: An international journal of mathematics and computer science, covering a broad range of topics in which geometry plays a fundamental role.
International Journal of Computational Geometry and Applications: World Scientific journal edited by D. T. Lee. Contents and abstracts fronm vol.10 (2000); full text to institutional subscribers.
Jeff Erickson's List of Computational Geometry Journals: Journals publishing papers in computational geometry and related fields.