| Election Date: | November 8, 1983 |
| Seats1: | 23 |
| After Election: | Carmen A. Orechio |
| Before Election: | Carmen A. Orechio |
| Before Party: | Democratic Party (United States) |
| Senate President | |
| Seat Change2: | 2 |
| Seats2: | 17 |
| Seats Before2: | 19 |
| Last Election2: | 18 |
| Leaders Seat2: | 22nd |
| Leader2: | Donald DiFrancesco |
| Party2: | Republican Party (United States) |
| Seat Change1: | 2 |
| Seats Before1: | 21 |
| Country: | New Jersey |
| Last Election1: | 22 |
| Leaders Seat1: | 13th |
| Leader1: | Carmen A. Orechio |
| Party1: | Democratic Party (United States) |
| Type: | legislative |
| Ongoing: | no |
| Next Election: | 1987 New Jersey State Senate election |
| Next Year: | 1987 |
| Previous Election: | 1981 New Jersey State Senate election |
| Previous Year: | 1981 |
| Seats For Election: | All 40 seats in the New Jersey State Senate |
| Majority Seats: | 21 |
| Election Name: | 1983 New Jersey Senate elections |
| After Party: | Democratic Party (United States) |
| Map Size: | x300px |
The 1983 New Jersey State Senate elections were held on November 8.
The election took place mid-way through the first term of Governor Thomas Kean. Democrats gained a net of two seats.
| Contents Incumbents not running • Summary of results By District: 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 28 • 29 • 30 • 31 • 32 • 33 • 34 • 35 • 36 • 37 • 38 • 39 • 40 |
Seats where the margin of victory was under 10%: