Debbie McDonald (born August 27, 1954) is an American dressage rider who has competed in the Olympics and many international competitions.

Debbie trains and teaches riders on Peggy and E. Parry Thomas's River Grove Farm in Sun Valley, Idaho.

Brentina, foaled in 1991, had a suitable temperament to respect McDonald, who is only five feet tall, and the team established a partnership that took them to the Olympics.

[1] At the 2004 Athens Olympics, the pair won the team bronze and were individually fourth overall, and McDonald was dubbed "First Lady of American Dressage.

[3] While McDonald went on to compete with other horses, Brentina developed an impaction in early 2009 and underwent colic surgery to remove a fecalith from her small colon.