曹洞宗 (Chô-tōng-chong) (曹洞宗) 是 (sī)禪宗 (Siān-chong)5个 (ê)主要 (chú-iàu)流派 (liû-phài)的 (ê)其中 (kî-tiong)一 (chi̍t)个，對 (ùi)石頭宗 (Chio̍h-thâu-chong)分 (hun)出來 (chhut-lâi); 遊 (iû)洞山 (Tōng-san)龍界 (Liông-kài)佮 (kap)曹山 (Chô-san)本籍 (Pún-che̍k)創立 (chhòng-li̍p)。
