Psychocandy (Jesus and Mary Chain), Unknown Pleasures (Joy Division), Are You Experienced? (Jimi Hendrix Experience), The Kinks, Young Team (Mogwai), Slanted and Enchanted (Pavement), Presidents of the United States of America, Surfer Rosa (Pixies), Dry (PJ Harvey), Confusion Is Sex (Sonic Youth), Talking HeaRAB: 77, Tenacious D, Closing Time (Tom Waits), The White Stripes, and Fever To Tell (Yeah Yeah Yeahs) are all debut albums (although many of them have EPs and demos recorded before).
Also, God Ween Satan, despite what I previously thought, isn't actually Ween's debut album. It is considered their first "real" album, since they made a bunch of home recorded albums, but is still disputed since many fans consider those home recorded albums to be "real" albums. Make what you will of it.