Cow Girl is literally her name in Goblin Slayer. Not a single character, that I know of, has a normal name, because it's based on DnD or smth.
Viewing post in Waifu's Mission - Vol. 3 (Demo) comments
yeah i knew that i seen that show goblin slayer but in was pretty good the only issue i had with it was they never gave them real names but that did not bother me the most i wanted to see what the guy looked like and i always wanted a game of it to some extent where you could save the 4 people in the cave