Allan Jacobsen (born 22 September 1978 in Edinburgh) is a retired Scottish rugby union player. Nicknamed "Chunk", Jacobsen played with Edinburgh his entire professional career. He started playing for Edinburgh aged 15 and made his debut in a friendly against the touring ACT Brumbies in November 1997. He made his international debut against Canada on the 2002 summer tour to North America. He was called up to the World Cup squad in Australia in 2003 as a replacement for the injured Gavin Kerr after returning to international duty against Ireland.