Dr. Gina Jefferson, known generally just as Gina, is a long-time human character on the children's television program Sesame Street.

Debuting as a teen, Gina has essentially grown up on Sesame Street, just as Maria had before her. Her first appearance was in 1987, when she was hired to assist then-operator of Hooper's Store, David.

The classic Sesame Street video title Best of Ernie and Bert features Gina in the main plotline, carried on throughout the highlighted skits.

In episode 3179, Elmo actually falls in love with, and wants to marry Gina. Gina has to kindly explain to him about their age difference.

Gina eventually went to vet school and is seen briefly in the 35th anniversary special The Street We Live On in what appear to be scrubs.