Alun Lewis (born 15 January 1956) is a former Welsh rugby union player. He joined the 1977 British Lions tour to New Zealand as a replacement during the tour. He represented Cambridge University R.U.F.C. in the Varsity Match in 1975 and 1976 and played club rugby for Bedford in 1974-5 before joining London Welsh RFC. However, he never played international rugby for Wales.