Lewis Roca Rothgerber Christie is a U.S. law firm with approximately 300 attorneys across ten offices in Arizona, California, Colorado, Nevada, and New Mexico.

The firm grew to 180 lawyers with offices in Phoenix, Tucson, Las Vegas, Reno, Albuquerque and Silicon Valley, and practices within litigation, real estate and business transactions, natural resources, gaming, intellectual property, and bankruptcy.

In 2013 the firm merged with Denver-based Rothgerber Johnson & Lyons,[10] which has operated in the Rocky Mountain region since 1903 with 75 lawyers and offices in Denver, Colorado Springs and Casper, and practice areas in litigation, real estate, banking, insurance, energy infrastructure and religious institutions.

Founded in 1954 by James Christie, Robert Parker and Russell Hale, CPH had included about 40 attorneys in Los Angeles and Orange County and had handled patent work for SpaceShipOne,[12] the first privately funded human space flight, among other clients.

Lewis Roca Rothgerber Christie attorneys were included in the 2016 "Best Law Firms" rankings by U.S. News & World Report.