Crossword clues for the word: KCS The word KCS has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for KCS Showing 1 to 6 of 6 results Clue(s) '80s Celtics coach Jones et al. "Leader of the Sunshine Band, et al." Basketball coach Jones and others Catholic men's org. Celtics coach Jones and namesakes Modern day crusaders; abbr.