罗勒属（学名：Ocimum），为唇形科下面的一个属。它带有芳香气味，为一年生或多年生草本植物或灌木，其中大多数都生长在东半球的热带和温带。

罗勒属植物也通常被用作鳞翅目幼虫的食物。

Ocimum is a genus of aromatic annual and perennial herbs and shrubs in the family Lamiaceae, native to the tropical and warm temperate regions of all 6 inhabited continents, with the greatest number of species in Africa. Its best known species are the cooking herb Cooking basil, O. basilicum and the medicinal herb Tulsi (holy basil) , O. tenuiflorum.