Helen Dunbar (born Katheryn Burke Lackey; October 10, 1863 – August 28, 1933) was an American theatrical performer and silent film actress.

Born in Philadelphia, Pennsylvania,[1] Dunbar first appeared with the Weber & Fields Stock Company, when it began its career on the New York stage.

Aside from Bushman, Dunbar made films with stars like Harry Cashman, Richard Carroll, Ruth Stonehouse, Beverly Bayne, Frank Keenan, John Gilbert, Mary Astor, Phyllis Haver, Norma Talmadge, and Noah Beery.

Her final movie was Stranded in Paris (1926), which featured Bebe Daniels and Tom Ricketts.

Dunbar died of complications of arthritis in 1933 at the home of her daughter, 1203 Poinsettia Place, Los Angeles, California.