The Systems Biology Graphical Notation (SBGN) has emerged as the main standard to represent biological maps graphically. It comprises three complementary languages: Process Description, for detailed biomolecular processes, Activity Flow, for influences of biological activities, and Entity Relationship, for independent relations shared among biological entities. On the other hand, TikZ is one of the most commonly used package to program graphics within TEX/LATEX. Here, we present sbgntikz, a TikZ library that allows drawing and customizing SBGN maps directly into TEX/LATEX documents, using the TikZ language. sbgntikz supports all glyphs of the three SBGN languages, and offers options that facilitate the drawing of complex glyph assembly within TikZ. Furthermore, sbgntikz is provided together with a converter that allows transforming any SBGN map stored under the SBGN Markup Language (SBGN-ML) into a TikZ picture, or rendering it directly into a PDF file.