Rodney Carlos Badger (September 8, 1848 – April 12, 1923) was an inaugural member of the general superintendency of the Young Men's Mutual Improvement Association (YMMIA) of the Church of Jesus Christ of Latter-day Saints (LDS Church).
Upon reaching adulthood, Badger was a LDS Church missionary to California and worked as a surveyor and telegraph operator with the Utah Central Railroad.
When Junius F. Wells became the first general superintendent of the YMMIA in 1876, he chose Milton H. Hardy and Badger as his assistants.
Badger acted in this capacity until 1880, when Wells was released and replaced by Wilford Woodruff.
Badger died in Salt Lake City of sepsis from a streptococcus infection.