Little Canadian research exists on immigrant men who have sex with men (MSM), who are internationally reported to use rapid HIV-testing sites. Our objective was to describe immigrant MSM in a sample of clients at an HIV testing site. From July 2012 to November 2013, clients at Actuel sur Rue (AsR), a Montreal-based HIV rapid-testing site, provided data for a staff- and a self-administered questionnaire. We compared immigrant and non-immigrant MSM's socio-demographics and risk practices. Among immigrants, we analyzed these variables by country of origin. We conducted regression analyses examining how immigrant status and socio-demographics were associated with risk practices. During the study, 1353 MSM visited AsR and 407 (30%) were immigrants, mostly from Europe, Latin America/Caribbean, and Africa/Middle-East. The same proportion (2%) of immigrant and non-immigrant MSM received a positive rapid HIV test result. Relative to non-immigrant MSM, significantly more immigrant MSM reported a post-secondary degree, a lower income, and being unemployed. Fewer reported receiving an HIV-positive/unknown-status partner's sperm/blood in their mouth, ever having unprotected sex with an HIV-positive partner, and ever selling sex. In comparisons between MSM immigrants by origin, fewer Asian and African/Middle-Eastern MSM reported ever testing for HIV. In the regression analyses, immigrant status was not independently associated with sexual risk. MSM who earned less, were unemployed, or had a high school degree or less were more likely to have sold sex. Socio-demographics like employment, education and income were associated with reported sexual risk in MSM clients, but not immigrant status alone.