Eugene Kinn Choy (1912–1991) was a Chinese-American architect best known for designing the Cathay Bank headquarters in Chinatown (1962–66) and several private residences in the Silver Lake neighborhood of Los Angeles.

He was the second Chinese-American to join the American Institute of Architects, following I. M. Pei, and one of the earliest to graduate from the School of Architecture at the University of Southern California.

He graduated from Kern County Union High School and Bakersfield Junior College, where he was president of the Architecture Students Association and participated in track competitions.

[5] Choy was one of the first non-white residents of the Silver Lake neighborhood of Los Angeles due to racial covenants in effect prohibiting the sale of property to "any person not of the Caucasian race" when he sought to build a house for his family there.

[5][10][11] Lawrence later took over the family business in Bakersfield, Choy's Department Store, from his father; Eugene helped to redesign the storefront and interior in 1948[2] and again for a grand reopening in 1953 following the 1952 Kern County earthquake.