| Election Name: | 1913 United States Senate election in New Jersey |
| Country: | New Jersey |
| Flag Year: | 1908 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1907 United States Senate election in New Jersey |
| Previous Year: | 1907 |
| Next Election: | 1918 United States Senate election in New Jersey |
| Next Year: | 1918 |
| Election Date: | January 28, 1913 |
| Votes For Election: | Resolution of the New Jersey Legislature |
| 1Blank: | Senate |
| 2Blank: | Percentage |
| 3Blank: | Assembly |
| 4Blank: | Percentage |
| Image1: | File:WmHughes.jpg |
| Nominee1: | William Hughes |
| Party1: | Democratic Party (United States) |
| 1Data1: | 12 |
| 2Data1: | 57.1% |
| 3Data1: | 51 |
| 4Data1: | 86.4% |
| Nominee2: | Frank O. Briggs |
| Party2: | Republican Party (United States) |
| 1Data2: | 9 |
| 2Data2: | 42.9% |
| 3Data2: | 8 |
| 4Data2: | 13.6% |
| Senator | |
| Before Election: | Frank O. Briggs |
| Before Party: | Republican Party (United States) |
| After Election: | William Hughes |
| After Party: | Democratic Party (United States) |
The 1913 United States Senate election in New Jersey was held on January 28, 1913. Republican incumbent Frank O. Briggs ran for re-election to a second term, but was defeated by Democratic judge and former U.S. Representative William Hughes.
Prior to passage of the Seventeenth Amendment to the United States Constitution, New Jersey elected United States senators by a resolution of the New Jersey Legislature.
On September 24, 1912, direct "advisory" primaries were held. Hughes defeated former Senator James Smith Jr. and John McDermitt of Newark for the Democratic nomination, while Briggs easily won the Republican nomination.[1] Thus, Hughes or Briggs stood likely to be elected Senator if their respective party won the 1910 fall legislative elections.
Three days after winning the primary, Hughes resigned from the House and was appointed judge of Court of Common Pleas of Passaic County.
Briggs, died just a few months later on May 8, 1913. Hughes would not serve the complete term, dying January 30, 1918, just before the next scheduled election.