The 1961 New Jersey 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.
Seats where the margin of victory was under 10%:
Remarkably, Senator Ridolfi received the same number of votes he had received in 1957.