The present research examined the validity of the Hungarian Frequency of Suicidal Ideation Inventory (FSII-H). In Study 1, among 457 Hungarian college students, confirmatory factor analysis supported a 1-factor model. In Study 2, among 241 Hungarian college students, the FSII-H correlated positively with measures of suicide risk factors, and negatively with suicide protective factors. The present findings are the first to provide promising evidence for the validity of a brief measure of suicide ideation frequency in a Hungarian population.