Charles M. Roberts (1866 – October 12, 1932) was an American politician who served in the first Arizona State Senate.

[3][4] Shortly thereafter he acquired the rights to some copper mining properties in the Dragoon Mountains, known as the Holmes Group.

[7] By the time of the writing of the Arizona Constitution, Roberts was one of the wealthiest men in the state, who in addition to his mining interests was also a cattleman.

[16] All 10 of the Democratic nominees from Cochise County were elected to serve as delegates to the convention, including Sims.

[24][25] During the First Legislature, Roberts authored a significant bill which dealt with the expansion of the state's highway system.

The primary was held on September 8, and by the 13th, 32 out of 46 precincts had reported in, with Roberts solidly in second place with 1348 votes, behind Riggs with 1655, but in front of Sims with 1209.

[29] However, two days later, a week after the election, there was only a single district remaining, and Roberts lead had disappeared and Sims now led him by 16 votes.

[33] In 1916, as late as April, Roberts was claiming that he wanted to focus on his ranch, and doubted he would ever return to politics.

[34] However, in July 1916, he publicly announced his intention to run for one of the two slots in the upcoming Democratic primary for state senator.

[40][41] In February 1918, Roberts announced his intention to seek the Democratic nomination for the state's Governor.

[51] He was joined by former state senators Sims and John P. Cull, as well as political newcomers William Delbridge and T. A.