Namesakes
Emmy Award Winners:
1 actress
(actress) Jean Marsh (middle name Lyndsey) 1975 Upstairs, Downstairs (Masterpiece Theatre) 
Notable Actors and Entertainers:
1 actor
Jean Marsh (middle name Lyndsey) 1934-2025
Notable Musicians:
1 musician
Lynsey de Paul (a.k.a. Lyndsey) 1948-2014
Olympic Medalists:
1 silver
(silver) Lyndsey Fry 2014 ice hockey