Ruifang District () is a suburban district in eastern New Taipei City, Taiwan.
During Japanese rule, Ruifang was called , and was administered as part of of Taihoku Prefecture. Mining was an important industry in Ruifang (then known as Sui-hong) in the early 20th century. Gold was mined in Kyà «fun and Kinkaseki while coal was mined in Kau-tong (; Houtong).
After the handover of Taiwan from Japan to the Republic of China in 1945, Ruifang was organized as an urban township of Taipei County. The mining sites became popular tourist destinations after 1990. On 25 December 2010, Taipei County was upgraded into a municipality named New Taipei City and Ruifang became a district of the municipality. In March 2012, it was named one of the Top 10 Small Tourist Towns by the Tourism Bureau.
There are thirty-four urban villages in the district which are divided between four election districts:
Ruifang is served by the Yilan Line of Taiwan Railway. There are four stations in Ruifang Township, which are Ruifang Station, Houtong Station, Sijiaoting Station and Sandiaoling Station.
Provincial Highway 62 passes Ruifang and provides a convenient connection to Keelung City.