Patrick Deignan (1946-1983) was a civic and community leader in his neighborhood of Jackson Heights. He co-founded the Jackson Heights Civic Association and was founder and board chairman of the Catherine M. Sheridan Center for Senior Citizens (now the Catherine Sheridan Older Adult Center). He was also active in various charitable, fraternal, and church organizations. In 1971, he became a member of Community Board 3, serving as its chairman from 1973 to 1975. He was a Democratic District leader in Jackson Heights from 1974 to 1982, chairing the Borough President's Commission on Charter Revision and also serving on the executive committee of the Queens Democratic Party.

Deignan was born on Staten Island on March 17, 1946, and raised in Jackson Heights, where he attended Blessed Sacrament School. He later continued his studies at Manhattan College (now Manhattan University) in Riverdale. He died on October 6, 1983, at Lenox Hill Hospital after a brief gastrointestinal illness. Survived at the time by his wife, the former Joy Laskowski, and a son, Patrick Jr., he is buried at St. Charles Cemetery in Farmingdale, New York.

On November 5, 1997, a ceremony was held at 34th Avenue and 69th Street, at the western end of a 26-block-long mall in Jackson Heights (also known as Paseo Park), to co-name the stretch of traffic islands in Deignan’s honor as Patrick C. Deignan Mall.