Fair, good, or holy valley
Derived from the Welsh word 'glan' meaning holy, fair, or pure, and 'nant' meaning valley. It is a feminine elaboration of the name Glynn, popularized in the mid-20th century.
Fewer than 5 girls were named Glynnis in 2025.
Tony Award-winning actress known for 'Mary Poppins'
South African actress known for 'Dempsey and Makepeace'
Olympic gold medalist in the heptathlon
US births per 5-year period, 1990–present (SSA data).