Judith Ann Blumberg (born September 13, 1957) is an American former competitive ice dancer.

"[6] In 1979, Blumberg/Seibert were awarded the bronze medal at their first U.S. Championships,[8] having finished third behind Stacey Smith / John Summers and Carol Fox / Richard Dalley.

After placing 7th at the Olympics, the two concluded their season with a 6th-place result at the 1980 World Championships in Dortmund, West Germany.

Blumberg/Seibert began the 1980–81 season with gold at the 1980 Skate Canada International, ahead of British duo Karen Barber / Nicky Slater.

[9][10] They had ranked third in the compulsory and original dances before being overtaken by Marina Klimova / Sergei Ponomarenko of the Soviet Union.

[11] They were initially coached by Bobby Thompson in London and then by Claire O'Neill Dillie in Pittsburgh and New York City.

[11] The two won their fifth national title, in Kansas City, Missouri, and then bronze at the 1985 World Championships in Tokyo, Japan.

[5] Although Blumberg wanted to continue performing together, Seibert decided to end their partnership in order to focus on choreography and directing.