The aim of this study was to test a model of people’s willingness to seek help for mental illness whether currently diagnosed or not. A cross-sectional design was used to test this model in a non-clinical convenience sample of Greek-Cypriots. Participants were 196 Greek-Cypriots living in Cyprus (age M = 34.50 years, SD = 14.16). They provided demographic data on their age, gender, SES and whether diagnosed or not with a mental illness, from whom they have/would seek help for a mental illness, and their willingness to seek help. They completed the Inventory of Attitudes towards Seeking Mental Health Services, the Multidimensional Scale of Perceived Support, and the Practical Barriers in Seeking Mental Health Services Scales, translated into Greek for this study. Approximately 24% of the sample reported being diagnosed with a mental illness within the past 12 months, and around a third of these people were taking prescribed medication. Willingness to seek help across all participants was predicted negatively by stigma and positively by openness to help. The findings of the current study extend our previous limited understanding of the factors affecting people’s willingness to seek help or their intentions towards the use of mental health services among Greek-Cypriots. Future research should consider whether there are any differences in help-seeking behaviours and motivations across people experiencing different disorders. Despite this limitation in the current data, these results can, in general terms, be used to inform policy in Cyprus for mental health promotions and interventions especially with respect to fostering an open attitude towards mental illness.