Alexandru Coci (born October 31, 1989) is a Romanian swimmer, who specialized in butterfly events. He is a Romanian swimming champion and record holder in butterfly, individual medley, relay events, and honorable mention All-American in the 100 m butterfly. Coci also became the first swimmer for the University of Alabama to break a 47-second barrier, when he posted a time of 46.50 seconds in the same stroke at the NCAA Division I Championships.