What is the deadliest insect on earth? The deadliest insect on earth is none other than the ubiquitous mosquito. Of course, mosquitoes, on their own, can’t do us much harm except make us itch like crazy, but as disease carriers, mosquitoes are downright lethal. As vectors of malaria, for example, these deadly insects indirectly cause the deaths of almost one-million people each year. Read More