William Egbert KC (February 25, 1857 – October 15, 1936) was a Canadian physician and politician. He served as the third Lieutenant Governor of Alberta from 1925 to 1931. Egbert was born in 1857 to a farming family in what is today the province of Ontario. He attended Ottawa Normal School, then taught and served as a principal at Ontario schools. After receiving his medical degrees, he began to practice in Milverton, Ontario. In 1904, he moved to Calgary, and involved himself in politics and community affairs as Alberta entered Confederation.