Ocimum campechianum is a plant species in the family Lamiaceae, widespread across Mexico, Central America, South America, the West Indies, and Florida.

Leaves of Ocimum campechianum are eaten in Brazil's Amazon jungle. Similar to basil, it has a pungent flavor and contains essential oils which have been used ethnomedicinally. In Amazonia, the aromatic leaves are used as an admixture in ayahuasca brews. The plant is known as albahaca in Mexico and called xkakaltun in Mexico's Yucatan Peninsula, where it is considered a honey plant and is used as an abortifacient. It is referred to in Brazil as alfavaca and has also been referred to as albahaca del monte, Amazonian basil, wild sweet basil, wild mosquito plant, least basil, Peruvian basil, spice basil, alfavaca-do-campo, manjericao and estoraque.

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