Lydia Boylan (born 19 July 1987) is an Irish racing cyclist, who competes in the track and road disciplines of the sport.

[3] Boylan won the Irish National Road Race Championships in 2015, 2016 and 2017.

[3] She rode at the 2015 UCI Track Cycling World Championships.

[7] She has competed for the WNT–Rotor Pro Cycling and Weston Homes–Torelli–Assure–Fred Whitton teams during her career.

Since November 2013 she has combined her cycling career with teaching at the University of Nottingham's School of Architecture.