H&H

H&H, H and H or HH may refer to:

Companies

 * H&H Bagels, a New York City bagel store
 * H&H Classics, automobile auctioneers
 * H&H Restaurant, a Macon, Georgia restaurant
 * H&H Shooting Sports, an Oklahoma City shooting range
 * Holland & Holland, gun maker
 * Howe & Howe Technologies, vehicle fabrication

Other

 * The popular name of Boston's Handel and Haydn Society
 * Hemoglobin and hematocrit, as a combination blood test
 * .240 Holland & Holland Magnum, a centrefire rifle cartridge