The UK-Vietnam Free Trade Agreement (UKVFTA) offers tariff incentives for Vietnamese tuna products, including a 3-year phase-out of taxes on frozen tuna loin or fillet, and a 7-year schedule for reduced taxes on processed tuna used in canned tuna. However, Vietnamese tuna exports to the UK have slowed down despite the agreement, with the UK reducing imports of frozen tuna meat/loin from Vietnam. There is potential for Vietnamese businesses to increase exports of processed and canned tuna products, given their popularity in the UK. The article also highlights the need for Vietnamese businesses to improve production quality, diversify export products, and understand the UK market to compete with Ecuador, which has a stronger fishing fleet and an abundance of pure origin tuna.