Humor is one of the most common forms of communication between people and an extremely important way of expressing emotions, whether positive or negative. It is established that there are two types of humor, of which each type has two subtypes, which gives a total of four styles of humor. Those two types are adaptive and maladaptive humor. In this research, the focus is on maladaptive humor styles consisting of aggressive and selfdefeating humor styles. One of the factors that has a significant connection with humor styles is personality traits. The "Dark Triad" consists of three parts of the personality; narcissism, Machiavellianism and psychopathy, and the very name "Dark Triad" comes from the negative qualities associated with these three aspects of personality. Research that dealt with the topic of the relation between humor or humor styles and the characteristics of the "Dark Triad" showed that respondents who score higher on the psychopathy scale and on the Machiavellianism scale have a greater tendency to use maladaptive humor (aggressive and self-defeating style). The goal of this research was to determine the relation between the tendency to use black (maladaptive) humor in students and the three dimensions of the "Dark Triad" personality. The research was conducted on a sample of Croatian students, through voluntary participation in an online questionnaire. The obtained results are partially in line with previous research, that is, it was determined that an aggressive style of humor is statistically significantly related to all dimensions of the "Dark Triad", while a self-defeating style of humor is not statistically significantly related to any dimension of the Dark Triad.