DNA2 may refer to:
* ''
DNA²
is a Japanese manga series written and illustrated by Masakazu Katsura. It was serialized in Shueisha's '' Weekly Shōnen Jump'' magazine between August 1993 and July 1994, spanning 42 chapters collected in a total of five ''tankōbon'' vo ...
'', a Japanese science fiction manga series
*
DNA2 (gene), a human gene which encodes the enzyme DNA2-like helicase
{{disambiguation