Errol Fraser Brain (born 21 July 1968) is a former New Zealand rugby union player and a current coach.
He played for Auckland Blues (1996) and Waikato Chiefs (1997/98), in New Zealand, and Valence d'Agen (1993), in France.
He left in late March 2013 when his contract expired, with a mixed legacy of results.
However, his family's final decision was to not move to Japan but to buy a business and settle down in Tauranga.
Errol and his wife Tracy bought TDDA (the drug detection agency) and soon started buying businesses around the bay.