The purpose of this study is to examine the relationships between critical thinking and metacognition. The sample of study consists of 390 university students who were enrolled in different programs at Sakarya University, in Turkey. In this study, the Critical Thinking Disposition Scale and Metacognitive Thinking Scale were used. The relationships between critical thinking and metacognition were examined using correlation analysis and the hypothesized model was tested through structural equation modeling. In correlation analysis, critical thinking and metacognition were found positively correlated. The model demonstrated fit (?[superscript 2] = 1014.86, df = 551, p = 0.00, RMSEA = 0.038, GFI = 0.99, AGFI = 0.99, CFI = 0.99, NFI = 0.99, IFI = 0.99, RFI = 0.99, SRMR = 0.008). According to results metacognition was predicted positively by critical thinking. Results were discussed in the light of literature.