Villiage of Barovia

Cemetary Spirit, page 29 - Unknown (possibly unique)

Carcass Eaters. page 32 - Libris Mortis

Deathlock, page 33 - Libris Mortis

Dire Maggots, page 35 - Libris Mortis

Entomber, page 37 - Libris Mortis

Blashpeme, page 42 - Libris Mortis

Gravetouched template, page 44-45 - Libris Mortis

Land of Barovia

Tainted Raver template, page 69 - Heroes of Horror

Bloodmote Cloud, page 70 - Libris Mortis

Blood Eels, page 72 - Unknown (possibly unique)

Tainted Raver template, page 73 - Heroes of Horror

Murks, page 75 - Libris Mortis

Caller in the Darkness, page 84 - Expanded Psionic Handbook

Castle Ravenloft

Trilloch, page 103 - Monstrous Manual III

Shadow Demon, page 112-113 - Book of Vile Darkness (though they dropped the darkness enhancement ability description)

Darkweaver, page 118 - Fiend Folio

Stone Dragons, page 128 - Unknown (possibly unique)

Dread Guards, page 131 - Monstrous Manual II

Shapeless Spawn page 138 - Unknown (possibly unique, but I think it's a Call of Cthuhlu monster in base, or an advanced gibbering mouther)

Crypt Chanter, page 142 - Libris Mortis

Cursed Spirit, page 143 - Miniature's Handbook

Cheliceras, page 144 - Monstrous Manual III

Chain Golem, page 148 - Monstrous Manual II

Redcap, page 153 - Monstrous Manual III

Garden Larva, page 157 - Unknown (probably unique)

Forsaken Shell, page 160 - Libris Mortis

Troll Stalker, page 162 - Unknown (possibly unique, might be a templated troll, and the regeneration is not specified)

(Glass) Shrapnyl, page 164 - Monstrous Manual II (Under raggamoffyn)

Web Golem, page 168 - Monstrous Manual III

Bar-Lgura, page 171 - Fiendish Codex I

Rutterkin, page 172 - Fiendish Codex I

Dolghast, page 173 - Magic of Eberron

Boneclaws, page 174 - Mostrous Manual III

Rot Reavers, page 177 - Monstrous Manual III

Bloodhulk Giant, page 179 - Monstrous Manual IV

Deathreap ooze, page 179 - Unknown (possibly unique)

Skin Kite, page 180 - Libris Mortis

Ghost brute template, page 180 - Libris Mortis

Voor, page 186 - Monstrous Manual IV

Curse-scribed golem, page 195 - Unknown (possibly unique)

Rogue Eidolon, page 198 - Monstrous Manual II