This paper aims to analyse the gambling activities and problem gambling risk factors for Indigenous Australian men, a topic which has previously drawn very little research attention. Using quantitative methods, we obtained a convenience sample of 1,259 women and men at Indigenous festivals, online and in several communities. This paper reports only on the responses of all 489 men in this sample. Risk factors significantly associated with problem gambling were being separated, divorced or widowed, working part-time, early gambling onset, using alcohol and/or drugs while gambling and spending high amounts of money on a favourite gambling form. Motivations significantly associated with risks of problem gambling were gambling to relax, because most family members and friends also gamble and self-reported addiction to gambling. However men who gamble to socialise with family and friends were significantly less likely to be problem gamblers. Risk factor identification may facilitate the development of effective preventative measures and risk management plans for Indigenous men.