A tortilla chip (/tɔːrˈtiː.ə tʃɪp/, Spanish: [torˈtiʎa tʃip]) is a snack food made from corn tortillas, which are cut into wedges and then fried—or baked (alternatively they may be discs pressed out of corn masa then fried or baked). Corn tortillas are made of corn, vegetable oil, salt and water. Although first mass-produced in Los Angeles in the late 1940s, tortilla chips were always considered to be a Mexican food, known as totopos and tostadas. Though usually made of yellow corn, they can also be made of white, blue, or red corn. Some manufacturers include many other ingredients including wheat, sugar, and monosodium glutamate.

The triangle shaped tortilla chip was popularized by Rebecca Webb Carranza as a way to make use of misshapen tortillas rejected from the automated tortilla manufacturing machine that she and her husband used at their Mexican delicatessen and tortilla factory in southwest Los Angeles. Carranza found that the discarded tortillas, cut into triangles and fried, were a popular snack, and she sold them for a dime a bag at the El Zarape Tortilla Factory. In 1994, Carranza received the Golden Tortilla award for her contribution to the Mexican food industry.

Tortilla chips are the quintessential and often complimentary appetizer in Tex-Mex and Mexican restaurants in the U.S. and elsewhere. Their popularity outside of California saw a steady rise in the late 1970s when they began to compete with corn chips, the dipping chip of choice during the first three quarters of the 20th century. They are typically served with a dip, such as salsa, chile con queso, or guacamole. When not served with a dip, the chips are often seasoned with herbs and spices. Although they are now available worldwide, the United States is one of the main markets for tortilla chips. Commercial brand names for tortilla chips include Phileas Fogg snacks, Tostitos, Doritos, and Don Tacos (in Japan).

A more elaborate dish utilizing tortilla chips is nachos. First created circa 1943 by Ignacio "Nacho" Anaya, nachos are tortilla chips served with melted or shredded cheese, although often other toppings are added or substituted, such as meat, salsa (such as pico de gallo), refried beans, guacamole, sour cream, diced onions, olives, and pickled jalapeños. More elaborate nachos are often baked for a short period of time to warm the tortillas and melt shredded cheese.

• Tortilla chip

• Tortilla chip with nacho cheese

• Tortilla chip with salsa