Mamamu Yan

Mamamu Yan (ママム・ヤン, Mamamu・Yan) is a dog-loving woman found in three games in the The Legend of Zelda series.

Ocarina of Time
Although un-named, she is the woman in Hyrule Castle Town who has lost her dog. If Link returns the correct dog (a white one from behind a stall), she will reward him with a Piece of Heart. She is one of the survivors who flee to Kakariko Village after the castle town was destroyed in the future when Link is an adult.

Majora's Mask
Mamamu Yan in Majora's Mask owns many dogs, and is found with them at her very own Doggy Racetrack. The racetrack is located within Romani's Ranch outside of town, where Link can place a bet on a dog in the dog races (this is made easier by using the Mask of Truth).

She is the Terminan counterpart of the previous lady who gives Link a piece of heart after delivering her dog to her.

Oracle of Ages
Mamamu Yan also plays a part in the Oracle of Ages trading sequence, giving link the Dumbbell in return for the Doggie Mask.