According to the invention, there is provided a novel soybean variety designated XB25A09. This invention thus relates to the seeds of soybean variety XB25A09, to the plants of soybean XB25A09 to plant parts of soybean variety XB25A09 and to methods for producing a soybean plant produced by crossing plants of the soybean variety XB25A09 with another soybean plant, using XB25A09 as either the male or the female parent.
