There is no "Kelsey" in Spanish. Many names are derived from regional or cultural significance. The major names that are shared across cultural borders are primarily religious (judeo-christian) in the West. I.E. Mary, Maria... Isabella, Elizabeth. John, Juan. etc...
i don't know if there's an exact translation, but my spanish teacher calls me "Carlota"
There is no proper spanish name for Kelsey but my teacher calls me Casandra
Kelsey Higgs's birth name is Kelsey Elizabeth Higgs.
Tim Kelsey's birth name is Timothy Kelsey.
Kelsey Batelaan's birth name is Kelsey Lynn Batelaan.
Kelsey McDonald's birth name is Kelsey Nicole McDonald.
Kelsey Lyn's birth name is Kelsey Lynn Aicher.
Kelsey Gillis's birth name is Kelsey Joan Gillis.
Kelsey Glasser's birth name is Kelsey Anne Glasser.
Kelsey Grammer's birth name is Allen Kelsey Grammer.
Fred Kelsey's birth name is Frederick Alvin Kelsey.
Sheldon Kelsey's birth name is Sheldon Albert Kelsey.