Short version of the name Krzysztof

What is the short version of the name Krzysztof????? Is it Krzys???

Krzyś, Krzysiu

I prefer Krzysiu.
Krzyś and Krzysio sound too childish, Krzysiek sounds not very nice - but it's a personal opinion, other Krzysztofs may have different preferences

Krzysiek sounds like a peasant version of the name in my opinion ;P

yeah, something like that :)

Krzyszis? ;-) Ha ha

Or "toffee" he he :-)

or Kris? ;)

Krzysiek for friends, Krzysiu as a child or for girlfriend, Krzyś- for me rarely used- sounds not soft nor serious

Kryssta is at female name
in polish

or Krysia ;)