The relation between gambling and impulsivity has been the subject of numerous studies that sought to explain the role of one of the most researched psychological constructs in maintaining the widespread multicultural gambling phenomenon. Impulsivity refers to the wide range of actions that are reckless, immature, risky or inappropriate to situations. Furthermore, the term gambling stands for all activities where people bet with money on an uncertain result. Researches of the relationship between impulsivity and gambling have given inconsistent findings which can be explained by the problem with sampling or difference in measurement methods used to measure impulsiveness because there are different ways to measure impulsivity, and also different impulsiveness definitions available in literature. Although numerous studies have examined the relationship between impulsiveness and gambling, only a small number of studies focused on adolescent gambling, especially in a non-clinical sample. An important question remains the impact of impulsiveness on frequency and the emergence of gambling in young people. The aim of this study was to examine gambling habits and the relationship between impulsivity as personality trait and gambling frequency, as well as the stake height when gambling in samples of adolescents and young adults. Another aim was to examine if there are differences in gambling frequency and bid height when gambling between the two groups. Data of impulsiveness rate and gambling habits were collected using the paper-pen method. 180 young males participated in this research (99 adolescents and 81 young adults, age range 16-35). The results of the analyzes showed that 77% of participants have gambled at least once in their lifetime, and 57% have gambled in the past month. The first gambling occurs at the age of 14. Gamblers play in average 2.5 different games while the average stake per bet is 17.43 kuna. Gamblers most commonly participate in sports betting (only 34% never did sports betting). The gamble that is played most rarely is roulette (72% of participants never played roulette). Correlation analyzes found an association between impulsiveness and gambling frequency. However, no correlation was found between impulsiveness and stake height while gambling. No difference was found in gambling frequency between adolescents and young adults, while it was found that young adults gamble with higher stakes than the adolescents.