LinPHA is an easy to use, multilingual, flexible photo/image archive/album/gallery written in PHP. It uses a SQL database to store information about your pictures. It comes with a HTML based installer, so you don't need experience in setting up SQL
Piwigo is a photo gallery software for the web. It comes with powerful features for publishing your photos and smart browsing capabilities such as categories, tags, or chronology. Extensions make Piwigo easily customizable.
Full featured photo collection PHP script - Light, fast and easy to install.
Exhibitae is a smart solution for large photo storages online. Fast and effective with lots of expand and modification possibilities. Including lots of features, ofcourse is everything optional to let you create your own personal image gallery.
Mig is designed to be a simple but flexible program that enables users to manage online photo galleries.
This is a reincarnation of Justin Frankel's original BlorpScript with some minor improvements.