Lay's is the name of a brand for a number of potato chip varieties, as well as the name of the company that founded the chip brand in the U.S. It has also been called Frito-Lay with Fritos. Lay's has been owned by PepsiCo through Frito-Lay since 1965.
"Lay's" is the company's primary brand, with the exception of limited markets where other brand names are used: Walkers in the UK and Ireland; Smith's in Australia; Chipsy in Egypt and the West Balkans; Tapuchips in Israel; Margarita in Colombia; Sabritas in Mexico; and, formerly, Hostess in Canada. Wikipedia