Baylies is a surname. Notable people with the surname include:
Carolyn Baylies (1947–2003), American academic and activist Edmund L. Baylies (1857–1932), American lawyer and philanthropist Francis Baylies (1783–1852), American politician Frank Leaman Baylies (1895–1918), American World War I flying ace Jeannette Osborn Baylies (1912–1984), American clubwoman Nicholas Baylies (1768–1847), American judge Thomas Baylies (1687–1756), Quaker ironmaster William Baylies (1776–1865), American politician William Baylies (1724–1787), British physician