A 48-year-old man was hospitalized with the chief complaints of lower abdominal pain, pain during micturation and pollakuria. Plain radiography showed 2 giant bladder stone shadows: one as 6.0 × 5.0 cm and the other one 5.0 × 5.0 cm in size. Cystolithotomy was performed. The first stone weighed 400 g and measured 6.0 × 5.0 × 6.0 cm in size, and the other stone was fragmented to smaller particles with pneumatic lithotriptor. Although a bladder stone is not rare, this case is interesting for 2 huge bladder calculi that were completely obstructing the bladder outlet and observed several years following pelvic trauma. To the best of our knowledge, our patient represents one of the largest bladder stone cases reported to date.