According to the invention, there is provided a novel soybean variety designated XB33G07. This invention thus relates to the seeds of soybean variety XB33G07, to the plants of soybean XB33G07 to plant parts of soybean variety XB33G07 and to methods for producing a soybean plant produced by crossing plants of the soybean variety XB33G07 with another soybean plant, using XB33G07 as either the male or the female parent.