Sir Peter Freyer KCB (2 July 1851 – 9 September 1921) was an Irish surgeon with an expertise in genitourinary surgery, best known at first as an Indian Medical Service (IMS) officer, for making popular the procedure for crushing bladder stones to allow them to be evacuated through the natural passages, a procedure known as a . Following retirement from the IMS after 20 years of service in India, he returned to England and popularized a procedure for benign large prostates. This was known as the suprapubic prostatectomy, a transvesical prostatectomy or the , where the prostate is removed through an abdominal incision above the pubic bone but below the umbilicus and through the bladder, and it included using suprapubic drainage post-operatively.