Betty Kozai (October 12, 1928 – January 18, 2021) was an American curler from Seattle, Washington.

Kozai won the US national championship in 1980, on a team skipped by her daughter Sharon.

That team went on to finish in fourth place at that year's world championship.

[1] She returned to international competition at the age of 81, representing the United States at the 2010 World Senior Curling Championships.

[3][4] Her three daughters and four grandchildren have also been long-time curlers at Granite.