2009 in British music charts

This is a summary of the year 2009 in British music charts. 31 singles have occupied the number-one spot including 15 new entries. Due to the increase in downloads over physical sales, singles now tend to enter the chart at a lower position, before climbing to the top a few weeks later: a trend which was previously rarely seen in the later half of the 1990s and most of the 2000s.