Kathryn Jean Whitmire (née Niederhofer; born August 15, 1946) is an American politician, businesswoman, and accountant best known as the first woman to serve as Mayor of Houston, serving for five consecutive two-year terms from 1982 to 1991. From 1977 to 1981, she was the city controller, a position which made her the first female elected to any office in the city. Whitmire drew national attention when she defeated former Harris County Sheriff Jack Heard in her election as mayor. The election drew national focus because it symbolized a major political realignment in the fourth-largest city in the United States.