According to the invention, there is provided a novel soybean variety designated XB39V08. This invention thus relates to the seeds of soybean variety XB39V08, to the plants of soybean XB39V08 to plant parts of soybean variety XB39V08 and to methods for producing a soybean plant produced by crossing plants of the soybean variety XB39V08 with another soybean plant, using XB39V08 as either the male or the female parent.