Nicknames for Marykate
3 nicknames, sorted by where they actually get used.
Office-safe
MK
formal
Kate
formal
Playground-friendly
Mary
casual
Marykate carries 3 documented short forms — MK, Mary, and Kate — drawn from its Irish-rooted roots. The list splits into 2 office-safe picks and 1 playground-friendly option so you can match the moment.