| Election Date: | November 3, 1987 |
| Seats1: | 24 |
| After Election: | John F. Russo |
| Before Election: | John F. Russo |
| Before Party: | Democratic Party (United States) |
| Senate President | |
| Seat Change2: | 1 |
| Seats2: | 16 |
| Seats Before2: | 17 |
| Last Election2: | 17 |
| Party2: | Republican Party (United States) |
| Seat Change1: | 1 |
| Seats Before1: | 23 |
| Country: | New Jersey |
| Last Election1: | 23 |
| Leaders Seat1: | 10th |
| Leader1: | John F. Russo |
| Party1: | Democratic Party (United States) |
| Type: | legislative |
| Ongoing: | no |
| Next Election: | 1991 New Jersey State Senate election |
| Next Year: | 1991 |
| Previous Election: | 1983 New Jersey State Senate election |
| Previous Year: | 1983 |
| Seats For Election: | All 40 seats in the New Jersey State Senate |
| Majority Seats: | 21 |
| Election Name: | 1987 New Jersey Senate elections |
| After Party: | Democratic Party (United States) |
| Map Size: | x300px |
The 1987 New Jersey State Senate elections were held on November 3.
The election took place mid-way through the second term of Governor Thomas Kean. The elections were marked by extreme stability; only one seat, that of Peter P. Garibaldi, did not return its incumbent Senator. Multiple Senators were re-elected unopposed.
| 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 |
Every incumbent Senator ran for re-election.
Seats where the margin of victory was under 10%: