scientific name for watermelon Hello. Welcome to  solsarin. This post is about “scientific name for watermelon”. What is watermelon scientific name? Citrullus lanatus Watermelon / Scientific name watermelon, (Citrullus lanatus), succulent fruit and vinelike plant of the gourd family (Cucurbitaceae), native to tropical Africa and cultivated around the world.   Why is watermelon called Citrullus? …