H. maxima

H. maxima may refer to:


 * Heteropoda maxima, a spider endemic to Laos
 * Heuchera maxima, a plant endemic to the Channel Islands of California
 * Honduriella maxima, a mite with a single pair of spiracles positioned laterally on the body
 * Hydrostachys maxima, an African plant
 * Hyla maxima, a New World frog