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Yes there is a port of Coppermine Gallery, it's called xcGallery, and works pretty well overall. There have been two developers that have worked on this since its original version.
Current version is 2.0.3 (as of 2007-04-23, released 2006-11-09). It has great features including flexible permissioning, site-wide and user albums, as well as the ability to share user albums (or not) and the ability for users to contribute to site-wide albums (with approval or not).
It's a little clunky at times, so I'm actually polishing a version of it right now for a project I'm working on and will release the changes back to the developer should they want to use them (I've made contact, but not yet heard back from the developer). Unfortunately, there are some hard-codings still within the code, which I'm striving to take out, generally, and some layout stuff I'm addressing as well. I'm also making the code more modular overall.
I'm also intrigued by the work on
XoopsGallery, a port of the very popular Gallery application. However, it's not integrated with the XOOPS users or permissioning system. Until it is, ala the xosCommerce module, then it's not very useful as that would require two separate logins.