Patterson & Sullivan (1921-1939) was an art and printing company based in San Francisco during the 1920s and 1930s. It was founded by J.E. Patterson and Ray Sullivan in 1921. The duo worked largely as commercial illustrators, using their skills to create striking visuals for advertising and promotion.

In addition to artistic services, Patterson & Sullivan were renowned for their graphic designers and also employed typographers, calligraphers, and photographers. Among their many important California clients, we find companies like Southern Pacific Railroad, Dole Food Company, the Del Monte Corporation, Levi Strauss & Co., Stanford University, and Standard Oil.

In 1939, P&S changed both ownership status and name. The company continues to exist today as P&H Creative Group, owned by Bruce Hettema.