Lydia Hiernickel (born 23 December 1996) is a Swiss cross-country skier. She competed in the women's 10 kilometre freestyle at the 2018 Winter Olympics.
Lydia Judy Hiernickel (* 23. Dezember 1996 in Schwanden) ist eine Schweizer Skilangläuferin. (de)
Lydia Hiernickel (born 23 December 1996) is a Swiss cross-country skier. She competed in the women's 10 kilometre freestyle at the 2018 Winter Olympics. (en)
Lydia Hiernickel, née le 23 décembre 1996 à Schwanden, est une fondeuse suisse. (fr)
Lydia Hiernickel (Schwanden, 23 dicembre 1996) è una fondista svizzera. (it)
Lydia Hiernickel (ur. 23 grudnia 1996 w ) – szwajcarska biegaczka narciarska, zawodniczka klubu Gardes Frontiere. (pl)