Miss Universe 1993 was the 42nd Miss Universe pageant, held at the Auditorio Nacional in Mexico City, Mexico, on 21 May 1993.

At the event's conclusion, Dayanara Torres of Puerto Rico was crowned Miss Universe 1993 by Michelle McLean of Namibia. Seventy-nine contestants competed in the pageant.

The pageant was hosted by Dick Clark for the fourth and final time, with commentary from Miss Universe 1987, Cecilia Bolocco and Miss Universe 1989, Angela Visser.

This was the third time the pageant was held in Mexico, two years after Lupita Jones won Mexico's first Miss Universe title in 1991. In the weeks prior to the final telecast, the contestants visited Campeche, Oaxaca, Zacatecas, Querétaro and the Mexican borough of Xochimilco for official events and sightseeing.

On 13 July 1992, Miss Universe Inc. and Canal 13 Mexico director Romeo Flores announced that this edition would happen at the Auditorio Nacional in Mexico City. The hosting of Miss Universe in Mexico was supported by the then-president of Mexico, Carlos Salinas de Gortari. Aside from Mexico City, the candidates also visited the states of Campeche, Oaxaca, Zacatecas, Querétaro, and the borough of Xochimilco for official activities before the final competition.

A few days before the final competition, the president of the Miss Mexico organization, Carlos Guerrero, announced that Miss Universe would be held in Mexico again in 1995. Negotiations did not push through, and the competition occurred in Namibia, the first African country to host Miss Universe. Miss Universe was held again in Mexico in 2007.

Contestants from seventy-nine countries and territories were selected to compete in the pageant. One contestant was selected to replace the original dethroned winner.

The winner of Eesti Miss Estonia 1993, Lilia Üksvärav, was replaced due to being underage. Her first runner-up, Kersti Tänavsuu, became the country's debut participant at Miss Universe pageant.