Albany Leon "Barney" Bigard (March 3, 1906 – June 27, 1980) was an American jazz clarinetist known for his 15-year tenure with Duke Ellington. He also played tenor saxophone.

Bigard was born in New Orleans to a family of Creoles. The son of Alexander and Emanuella Bigard, he had two brothers, Alexander Jr. and Sidney. His uncle, Emile Bigard, was a jazz violinist. He attended local schools and studied music and clarinet with Lorenzo Tio.

In the early 1920s, he moved to Chicago, where he worked with King Oliver and others. During this period, much of his recording, including with clarinetist Johnny Dodds, was on tenor saxophone, which he played often with great lyricism, as on Oliver's "Someday Sweetheart".

In 1927, Bigard joined Duke Ellington's orchestra in New York. He played with Ellington until 1942. They played primarily at the Cotton Club until 1931, then toured almost nonstop for over a decade. With Ellington, he was the featured clarinet soloist, while also doing section work on tenor saxophone.

After leaving Ellington's orchestra, Bigard moved to Los Angeles, California. He did soundtrack work for Hollywood film studios and had an onscreen featured role with an all-star band led by Louis Armstrong in the film New Orleans (1947). He began working with trombonist Kid Ory's group during the late 1940s. He later worked with Armstrong's touring band, the All Stars, and others. Bigard appeared and played in the movie St. Louis Blues (1958), with Nat King Cole, Ella Fitzgerald, Pearl Bailey and Eartha Kitt.

Bigard wrote an autobiography entitled With Louis and The Duke. He is credited as composer or co-composer on several numbers, including the Ellington standard "Mood Indigo".