World of Warcraft has a massive amount of battle pets of all shapes and sizes which players can collect and they can be obtained through various means. Some of them can be bought, others come as reputation or quest rewards and some of them can event drop from various raid bosses. This article will focus on all of the pets that can drop from raid bosses of the old vanilla World of Warcraft raids.
Zul’Gurub
No battle pets are dropped by any of the bosses in this raid.
Ruins of Ahn’Qiraj
No battle pets are dropped by any of the bosses in this raid.
Molten Core
This is a rare elemental pet that players can get from one of the bosses within the raid of Molten Core. The Ashstone Core is dropped by Golemagg the Incinerator and usually drops once in every 14 boss kills.

This is another battle pet that has a chance to drop within the Molten Core raid. It is a humanoid creature which drops from Magmadar and has a drop rate of 1 in every 13 battles.

Harbinger of Flame is the third and final pet that has a chance to drop within the Molten Core raid. It is a small Naga humanoid pet which can drop from the boss called Sulfuron Harbinger. The drop rate for this pet is somewhere around 5%.

Blackwing Lair
Untamed Hatchling is a dragonkin battle pet that drops within Blackwing Lair raid from the boss Razorgore the Untamed.

This battle pet can be obtained from one of the bosses within the Blackwing Lair. It is dropped by the Broodlord Lashlayer and it has a drop rate of roughly 11%.

Chrominius is the third and final battle pet that drops from one of the raid bosses within the Blackwing Lair raid instance. The boss that has a chance to drop this battle pet is Chromaggus and it has a chance of roughly 13% to drop.

Onyxia’s Lair
No battle pets are dropped by any of the bosses in this raid.
The Temple of Ahn’Qiraj
Anubisath Idol is a battle pet that players can get within the raid instance of Temple of Ahn’Qiraj. It is dropped by the raid boss Emperor Vek’lor and has a drop chance of around 10%.

Mini Mindslayer is a magic type of battle pet that has a chance to drop from one of the bosses within the Temple of Ahn’Qiraj raid. The Prophet Skeram is the boss who drops the pet and it has a roughly 9% chance to drop.

This is yet another battle pet that can drop within the Temple of Ahn’Qiraj. The boss that has the chance to drop this battle pet is Viscidus and the drop rate is relatively high compared to other pets on this list with it being around 25%.

Naxxramas
Fungal Abomination is one of the battle pets that drops within the Naxxramas raid. It can be dropped by the boss Loatheb with a chance of roughly 13%.

Giant Bone Spider is an undead type spider pet that players can get their hands on within the raid instance of Naxxramas. Maexxna is the boss that has a roughly 16% chance to drop this battle pet.

Stiched Pup is also an undead type battle pet which can be obtained by killing one of the bosses in Naxxramas. The boss that has a chance to drop this pet is Gluth, however, the drop chance is fairly low with it being only around 16%.
