The 2011–12 Regional Four Day Competition was the 46th domestic first-class cricket tournament held in the West Indies, it took place from 5 February 2011 – 16 April 2012. Unlike the previous year when the touring England Lions took part in the series, this edition was played between the seven teams based in the Caribbean. The tournament retained the same structure as the previous season; a round–robin that was followed by semi–finals where the top four teams competed.