This study embarks on an art-historical exploration of August Strindberg's connections with various artistic movements, specifically Realism, Post-Impressionism, and Expressionism. It aims to deepen the understanding of the influence these movements had on Strindberg's creative output and how his artistic works, in turn, mirrored and contributed to the development of artistic trends. The study begins by situating Strindberg within the Realism context, analyzing his representation of nature through a formal analysis lens, and drawing parallels with the broader philosophical reflections inherent in Realist art. It then transitions to an examination of Post-Impressionism, unveiling Strindberg's engagement with the movement's dynamic use of color and his manipulation of form to evoke emotional resonance. Furthermore, the study delves into an analysis of Strindberg's interactions with Expressionist artistic currents, thus emphasizing his further evolution of artistic style in terms of emotional intensity and personal expressions of the artist. The concluding section discusses findings aimed at characterizing Strindberg's painting as a form of distinct individuality, though rooted in the artistic currents of his time. It is suggested that further research into Strindberg's integration of these movements could illuminate his role as a precursor to contemporary artistic expressions, potentially influencing subsequent art forms.  Thus, the study presents a concise comprehensive analysis of August Strindberg's mastery within the context of significant artistic movements, proposing that his work resonates with the aesthetic and emotional undercurrents of his era and transcends them to offer a unique perspective on the evolution of modern art.