(Taken from various websites)
Several classic Star Trek episodes show that male Vulcans have names starting with S and ending with k (Spock, Sarek, Sybok), whereas Vulcan women have names starting with T' (as in T'Pring, T'Pau, T'Pel).
Spock
Surok
Suvok
Tuvok
Surak
T'Pel
Sarek
Surak
Stonn
Sonak
Sybok
Taurik
T'Pau
T'Pring
T'plana-Hath
T'Pan
T'Lar
Selar
Saavik
T'Eris
Sesik
Sendik
Sornik
Setrik
Sodrock
Sadek
Torik
T'Varen
Sanek
Sulik
Senock
Savick
Savok
Sovval
Sinak
Sinek
K'Val
Kenik
Tokk
Sorik
Surak
Selek
T'Zaq
(Just for fun)
Was Vice President Gore Vulcan or Human?
Spock and Kirk's Who's on First routine