This article is about a fictional character. For the Ernestine branch of European royal houses, please see Wettin (dynasty).

Ernestine is a minor fictional Muppet character, used occasionally in Sesame Street segments, who is Ernie's niece.

Ernestine appeared in The Best of Ernie and Bert , a video of top Ernie and Bert segments.

Ernestine has been often mistaken for Natasha, who is of no relation in the series. Ernestine is circa 1988.

On Plaza Sesamo, the Mexican version of the series, she is known as "Enriquita" (Ernie is called "Enrique").