1 Brazilian Wandering SpiderThe Brazilian Wandering Spider is an extremely venemous spider and occupies top position in this list. Predominantly found in Brazil, these huge, hairy creepy-crawlies belong to the genus Phoneutria, which means "murderess" in Greek. The poison of these spiders consists of a potent neurotoxin called as PhTx3, but thankfully they rearely get near humans to bite. Its bite can be deadly to humans, especially children.
2 Six-Eyed Sand SpiderSix-Eyed Sand Spider is the second deadly spider in the world. This medium-sized spider with body measuring 8 to 15 mm and legs spanning up to 50 mm is relative of the Recluse Spider and it is only found in the deserts of southern Africa. The venom of this spider is quite dangerous because of a toxin called cryotoxin.