This is the third year MBRRACE-UK has been reporting. This year’s report collects information on babies who were born in 2015 but died either before they were born or shortly after birth. The audit is funded by all four UK governments, and aims to highlight variation across the whole of the UK and show trends over time. Are more or fewer babies dying? Who’s most at risk? Understanding these vital questions helps those designing and delivering care understand how and where to improve services for women and their babies.