Roxana Hartmann, née Luca (born 23 December 1982) is a Romanian former competitive figure skater.

Hartmann made her senior international debut when she was 13 years old, placing 14th in her qualifying group at the 1996 European Championships.

Hartmann placed 23rd at the 2002 Winter Olympics in Salt Lake City, Utah, United States.

A back injury caused her to withdraw from the 2006 European Championships during the short program.

Since her retirement, she began working as a figure skating coach and choreographer in southern Germany.