List of number-one digital singles of 2012 (Japan)

This is a list of songs that reached #1 on the RIAJ Digital Track Chart chart in Japan in 2012. The highest-selling digital singles in Japan are published by Recording Industry Association of Japan. PC downloads and ringtone downloads are not eligible for the chart, only cellphone downloads (Chaku-uta Full) count for the chart.

The chart week runs from Wednesday to Tuesday. The first week of 2012, starting January 3, was merged with the following week (1/4-1/10) due to New Year's celebrations.