KK or K.K. has been used as a nickname by several people, including:
KK, born Kelton L. McDonalda, rapper from the American rap group 2nd II None
KK (musician) (born 1956), Icelandic musician
KK (singer), (Krishnakumar Kunnath, born 1968), Bollywood playback singer
KK (Kevin Kerrigan) (born 1975), British record producer and musician
KK Goswami (born 1973), Indian film and television actor
K. K. Downing (born 1951), British musician
K. Keshava Rao, Indian politician
Kay Kay Menon (born 1968), Indian actor
Keke Rosberg (born 1948), Finnish racing driver
Kenneth Kaunda (born 1924), Zambian politician
