<p>Online gambling and related adverse consequences are increasing among young adults. The present study examined and compared the psychometric properties of the Chinese versions of three online gambling measures: the Online Gambling Disorder Questionnaire (OGD-Q), Online Gambling Symptom Assessment Scale (OGSAS), and Gambling Urge Scale (GUS), among young adult online gamblers.&#xa0;The sample comprised 986 Taiwanese young adults aged 18–30 years who had gambled online in the past year. Internal consistency (Cronbach’s α and McDonald’s ω), factor structure (confirmatory factor analysis [CFA]), measurement invariance across sex/educational level, and concurrent validity (Pearson correlation coefficients with each other and the external criterion measure of Gambling Related Cognitions Scale [GRCS]) of the three measures were examined.&#xa0;The Chinese versions of the OGSAS, OGD-Q, and GUS all had excellent internal consistency (α = 0.96 to 0.97; ω = 0.96 to 0.98). The CFA results supported the original one-factor structure of OGD-Q and GUS and the original three-factor structure of OGSAS. Moreover, the factor structures of the three measures were invariant across sex and educational level. Concurrent validity of the three measures was supported by their mutually significant associations and association with the GRCS.&#xa0;The results provided robust support for the psychometric properties of the Chinese versions of the OGSAS, OGD-Q, and GUS among young Taiwanese adult online gamblers. The Chinese versions of the OGSAS, OGD-Q, and GUS can be applied to evaluate levels of online gambling and urge among young Chinese-speaking adults.</p>