Polaco is the artistic name of Rômulo Romanha (1982), a Brazilian visual artist and painter. His interest in art began in childhood, marked by the intense production of his own drawings. In 1996, he began his journey in urban art through tagging and graffiti on the streets of São Paulo. During this period, he signed as Genius and was part of the tagging crew Os Mais Perfeitos, developing stylized letters and writings in interventions carried out on trains, tunnels, buildings and other urban spaces.

In 2000, he enrolled in art university, expanding his repertoire and deepening his research in different languages, such as painting, installation, and performance. He began signing his works as Rômulo Romanha and participated in the Suzano New Artists Salon between 2003 and 2005. In 2007, he was part of the Alto Tietê Art Biennial with the work "Resposta a Sangue e Fogo" (Response to Blood and Fire), an installation that addressed themes related to expropriations and urban conflicts.

Later, he explored wheatpaste posters, using stencils and paper printing to intervene in public spaces, a period in which he adopted the name Polaco, a childhood nickname given to him by his grandmother. After a break in 2012 to dedicate himself to education as an art teacher, he returned to artistic production in 2017, focusing on stencil painting.

Currently, he is developing a body of work with a pop aesthetic, investigating portraiture, identity, anonymity, and contemporary social issues. He has participated in, among other exhibitions, As Ruas que Falam (2021), the XXI Vale do Paraíba Art Exhibition at the Pinacoteca de Taubaté, and the 50th Portinari Week at the Casa de Portinari Museum (2025).