Mark Williams (singer)
 Mark Williams (born 1954) is a New Zealand-born pop/soul singer with Recording Industry Association of New Zealand (RIANZ) number one hit singles Yesterday Was Just the Beginning of My Life (1975) and a cover of Buddy Holly's It Doesn't Matter Anymore (1977) before he relocated to Australia later that year. His single Show No Mercy (1990) was a top ten hit in both countries.