This paper presents homelessness as a social problem and the negative effects and phenomena related to the said problem. The homeless represent one of the most vulnerable social groups, living in conditions of extreme poverty and on the very margins of society. The paper presents the definition and complexity of the phenomenon of discrimination, the problem of defining that type of discrimination. Then the definitions of homelessness and poverty are presented. In addition to the general exposition of the concept of discrimination, the issue of discrimination against persons who experience homelessness and who experience socioeconomic marginalization, violation and violation of rights, face negative attitudes towards them, stereotyping, social exclusion and less opportunities for full integration into society is presented. The two most common grounds on which homeless people in the Republic of Croatia are discriminated against are discrimination based on property status and social position. In addition to these forms, the homeless also face segregation and victimization. The concept of criminalizing homelessness is described as acting in accordance with certain legal regulations that can be considered discriminatory in view of the intention, not to solve, but to penalize the problem of poverty. Finally, the concept of stigmatization was addressed as giving labels to the homeless, avoiding and rejecting this group of citizens, blaming them for the life situation they found themselves in, which consequently leads to a devalued social identity.