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Purpose: Generally, due to limited availability of official statistics on the topic, little is known about suicide mortality in second-generation migrants. A recent study from Sweden showed that these people could be at a high suicide risk. In a generalised phenomenon, this aspect would represent an important issue in suicide prevention. This paper aims to report the profile of second-generation migrants who died by suicide and the suicide risk differentials of second-generation migrants with other Australians. Methods: Official suicide data from 2001 to 2008 were linked with State/Territory registries to collect information about the birthplace of the deceased's parents to differentiate migration status (first, second or third-plus generation). The profile and suicide risk of second-generation migrants were compared with other generations by logistic and Poisson regression. Results: Suicide in second-generation migrants accounted for 811 cases (14.6 %). These tended to be represented by younger subjects, more often never married, as compared to the other cases. Second-generation males aged 25-39 years tended to have a higher suicide risk than first-generation migrants, but the risk was lower when compared with the third-plus generation. Second-generation migrants aged 60+ tended to have a lower suicide risk than first-generation migrants. Conclusion: In Australia, second-generation migrants are not at a higher suicide risk as compared to first-generation migrants or locals (third-plus-generation). In males aged 25-39, a lower suicide risk was found in second-generations as compared to Australian-born third generation, which may be explained by their more advantageous socioeconomic status and the flexibility and resources rendered by having grown up in a bicultural environment. The higher suicide rates found amongst older first-generation migrants require further examination. [ABSTRACT FROM AUTHOR]