Soybean variety XBP08004

A novel soybean variety, designated XBP08004 is provided. Also provided are the seeds of soybean variety XBP08004, cells from soybean variety XBP08004, plants of soybean XBP08004, and plant parts of soybean variety XBP08004. Methods provided include producing a soybean plant by crossing soybean variety XBP08004 with another soybean plant, methods for introgressing a transgenic trait, a mutant trait, and/or a native trait into soybean variety XBP08004, methods for producing other soybean varieties or plant parts derived from soybean variety XBP08004, and methods of characterizing soybean variety XBP08004. Soybean seed, cells, plants, germplasm, breeding lines, varieties, and plant parts produced by these methods and/or derived from soybean variety XBP08004 are further provided.