In 2014 as a whole, labour productivity was little changed from 2013, and slightly lower than in 2007, before the economic downturn, it said.
Despite a fall in manufacturing output per hour in the final quarter of 2014, there was a "broad-based and robust" recovery in productivity across manufacturing in 2014 as a whole, the ONS added.
Despite weak productivity growth, unit labour costs have increased only modestly, by less than 1% per year on average over the last five years. This reflects low growth in labour costs per hour worked.