| Election Name: | 1961 New Jersey Senate elections |
| Seats1: | 11 |
| Country: | New Jersey |
| Previous Election: | 1959 New Jersey State Senate election |
| Previous Year: | 1959 |
| Next Election: | 1963 New Jersey State Senate election |
| Next Year: | 1963 |
| Majority Seats: | 11 |
| Election Date: | November 5, 1961 |
| Seats For Election: | 10 of the 21 seats in the New Jersey State Senate |
| 1Blank: | Seats up |
| 2Blank: | Races won |
| Party1: | Republican Party (United States) |
| Ongoing: | no |
| Type: | legislative |
| Seats2: | 10 |
| 2Data1: | 6 |
| Party2: | Democratic Party (United States) |
| Seats Before2: | 10 |
| Seats Before1: | 11 |
| 1Data2: | 4 |
| 2Data2: | 4 |
| Senate President | |
| Before Election: | William E. Ozzard |
| Before Party: | Republican Party (United States) |
| After Election: | William E. Ozzard |
| 1Data1: | 6 |
| After Party: | Republican Party (United States) |
The 1961 New Jersey State Senate elections were held on November 5.
The elections took place alongside the election of Governor Richard J. Hughes. Ten of New Jersey's 21 counties elected Senators; no seats changed hands.
All four Democratic Senators up for re-election ran for another term.
| County | Incumbent | Party | Elected Senator | Party | |||
|---|---|---|---|---|---|---|---|
| Atlantic | Frank S. Farley | Rep | Frank S. Farley | Rep | |||
| Bergen | Walter H. Jones | Rep | Pierce Deamer | Rep | |||
| Burlington | Henry S. Haines | Dem | No election | ||||
| Camden | Joseph W. Cowgill | Dem | No election | ||||
| Cape May | Charles W. Sandman | Rep | No election | ||||
| Cumberland | Robert H. Weber | Dem | Robert H. Weber | Dem | |||
| Essex | Donal C. Fox | Dem | No election | ||||
| Gloucester | Thomas F. Connery Jr. | Dem | No election | ||||
| Hudson | William F. Kelley Jr. | Dem | William F. Kelly Jr. | Dem | |||
| Hunterdon | Wesley Lance | Rep | Raymond Bowkley | Rep | |||
| Mercer | Sido Ridolfi | Dem | Sido Ridolfi | Dem | |||
| Middlesex | John A. Lynch | Dem | No election | ||||
| Monmouth | Richard R. Stout | Rep | No election | ||||
| Morris | Thomas J. Hillery | Rep | Thomas J. Hillery | Rep | |||
| Ocean | W. Steelman Mathis | Rep | W. Steelman Mathis | Rep | |||
| Passaic | Anthony J. Grossi | Dem | Anthony J. Grossi | Dem | |||
| Salem | John A. Waddington | Dem | No election | ||||
| Somerset | William E. Ozzard | Rep | No election | ||||
| Sussex | George B. Harper | Rep | George B. Harper | Rep | |||
| Union | Robert C. Crane | Rep | No election | ||||
| Warren | Wayne Dumont | Rep | No election | ||||
Seats where the margin of victory was under 10%:
Remarkably, Senator Ridolfi received the exact same number of votes he had received in 1957.[1]