The paper presents a part of the results of a larger research “Youth gambling: perception of mental health professionals” which was carried out under the auspice of University of Zagreb research support with professor Neven Ricijaš, PhD as the lead reasercher. The aim of the research was to gain insight into the perception of mental health professionals from different sectors (Social welfare, justice, health, education and non governmental) regarding youth gambling and their self-assessment of competences. The aim of this paper is to gauge the perception of youth gambling and potential differences of it by professionals in the social welfare system, based on their personal attitudes towards gambling. The sample is non-representative, with a total of N=107 professionals from social welfare system responding to the questionnaire, coming from most regions of Croatia. The professionals were divided into two groups relating to their personal beliefs and attitudes towards gambling based on their score on ATGS-8 scale. In total, n=53 professionals were placed in “more negative attitudes” group and n=54 in “moderately positive attitudes” group. Scales and measurements that were used were: general and socio demographic information, frequency of work with different risky behaviours, a questionnaire on personal attitudes towards youth gamblers, an ATGS-8 scale of personal gambling attitudes, questions about supervision of gambling industry, availability and accessibility of gambling, and questions about knowledge of interventions and treatment of youth gamblers in Croatia. The data was collected during the months of February and March of 2018 via an online survey that was sent to prospective participants of the study. The results show that professionals perceive they rarely work with youth who have gambling problems, generally see gambling as a behaviour that should not be encouraged and as a potential risk for youth, but are not sufficiently informed about how great of a risk it is to young people specifically. The differences in personal beliefs of professionals have shown to be a significant factor in perception of some elements of behaviour and attitudes about youth gamblers, in perception of supervision of gambling industry and the availability of gambling. These have not shown to be significant in perception of availability of gambling among underage children. Professionals are, generally, not well informed about the treatment programmes for underage gamblers in Croatia and lack thereof, but those who say they know of a prevention programme can correctly name the only existing one.