List of Gaon Chart number-one singles of 2010

The Gaon Digital Chart is a chart that ranks the best-performing singles of South Korea. Managed by the domestic Ministry of Culture, Sports and Tourism, its data is compiled by the Korea Music Content Industry Association and published by the Gaon Music Chart. The ranking is based collectively on each single's weekly download sales, stream count, and background music usage. In mid-2008, the Recording Industry Association of Korea halted its tracking of music sales; as a result, they were not tracked until the introduction of the Gaon Music Chart in February 2010. With the creation of the Gaon Digital Chart, it became the first time in South Korea's history for digital data for individual songs to be provided.

In 2010, 35 singles claimed the top spot in 52 weeks of rankings. Upon its inception, Gain and Jo Kwon's collaboration "We Fell in Love" became the first song to top the Digital Chart, doing so for three consecutive weeks. "Bad Girl Good Girl" by Miss A, the quartet's debut single, spent four consecutive weeks at number one on the Gaon Digital Chart. It went on to become the best-performing single of 2010, topping the year-end chart.Girls' Generation topped the chart with three different songs, more than any other act. On the monthly chart, Girls' Generation and IU had the most number-one singles, with two each.

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