Not quite...7 albums + various live/b-sides/best of ones.
Leisure, Modern Life is Rubbish, Parklife, The Great Escape, Blur, 13, Think Tank. The first three are very much structured Brit Pop while the last three tried to move away into a more indie-rock/experimental sound. Parklife is usually considered their best in terms of the Brit Pop feel. Leisure is kinda shoe-gazerish and while I love it because it got me into the band, they definitely grew in leaps and bounds by the time they made Modern Life. The difference between the two sounds (Brit Pop/indie rock) is quite amazing...doesn't always sound like the same band, IMO.
They also have a Live at the Budokan album, a Japanese b-sides set, Bustin' and Dronin' (remixes), a Best of, and a pricey boxset of all their singles up to, I think, the "Blur" album.
Seen them a bunch of times live and they are amazing...though their shows are a little less chaotic now. Damon used to get drunk and do all kinds of crazy things but now they have additional musicians and back-up singers so the shows are less spontaneous. Oh, and Graham Coxon, their incredibly talented guitarist, left during Think Tank because he didn't like their new musical direction.
They've been one of my favourite bands for 11 years and I still really enjoy them.