The aim of the study was to gain insight and to deeply understand the experience of gestalt therapists in their work on their clients families and couples relationship improvement. The focus of the research was, through two research questions, on family and couples issues, most common in the treatment of gestalt therapy, and on gestalt approaches used in therapeutic work on solving those issues. A qualitative research was conducted with ten gestalt therapists in city of Zagreb, using the method of semi-structured interviews, and the data obtained was analyzed using the analysis framework. The results show that the most common topics related to family and couples relationships are: mourning and loss, communication difficulties, problems of differences and various problems that emerge in developing quality relationships. The approaches that have been shown to be key to good therapeutic work are: different therapeutic approach depending on the client (individual, partner or group therapy), creating "I-thou" relationship between the therapist and the client, concentration of work in "here and now" and the use of basic principles of gestalt therapy in work as an imperative in therapy regardless of the subject. Various techniques and experiments such as dialogue, empty chair technique, etc. have been shown useful, with the importance of adapting the technique to the therapeutic process and some additional education that therapists possess so that the therapeutic work would be better targeted to clients. We conclude that the subjects related to couples relatonships are diverse in therapeutic work and that, regardless of the topics, what is crucial in working with individuals and couples or families is the establishment of good contact and "I-thou" relationship between therapist and client and the focus on fundamental principles of gestalt therapy, as opposed to focusing on techniques that are only in the service of the therapeutic process.