| Election Name: | 2015 Dutch Senate election |
| Country: | Netherlands |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 2011 Dutch Senate election |
| Previous Year: | 2011 |
| Next Election: | 2019 Dutch Senate election |
| Next Year: | 2019 |
| Seats For Election: | All 75 seats to the Senate 38 seats are needed for a majority |
| Election Date: | 26 May 2015 |
| Leader1: | Loek Hermans |
| Party1: | People's Party for Freedom and Democracy |
| Last Election1: | 16 seats, 20,8% |
| Seats1: | 13 |
| Seat Change1: | 3 |
| Popular Vote1: | 28,523 |
| Percentage1: | 16.9% |
| Swing1: | 3.9% |
| Leader2: | Elco Brinkman |
| Party2: | Christian Democratic Appeal |
| Last Election2: | 11 seats, 14.6% |
| Seats2: | 12 |
| Seat Change2: | 1 |
| Popular Vote2: | 25,145 |
| Percentage2: | 14.9% |
| Swing2: | 0.3% |
| Leader3: | Thom de Graaf |
| Party3: | Democrats 66 |
| Last Election3: | 5 seats, 7.6% |
| Seats3: | 10 |
| Seat Change3: | 5 |
| Popular Vote3: | 21,997 |
| Percentage3: | 13.0% |
| Swing3: | 5.4% |
| Leader4: | Marjolein Faber |
| Party4: | Party for Freedom |
| Last Election4: | 10 seats, 13.1% |
| Seats4: | 9 |
| Seat Change4: | 1 |
| Popular Vote4: | 20,235 |
| Percentage4: | 12.0% |
| Swing4: | 1.1% |
| Leader5: | Tiny Kox |
| Party5: | Socialist Party (Netherlands) |
| Last Election5: | 8 seats, 10.3% |
| Seats5: | 9 |
| Seat Change5: | 1 |
| Popular Vote5: | 20,038 |
| Percentage5: | 11.9% |
| Swing5: | 1.6% |
| Leader6: | Marleen Barth |
| Party6: | Labour Party (Netherlands) |
| Last Election6: | 14 seats, 18.1% |
| Seats6: | 8 |
| Seat Change6: | 6 |
| Popular Vote6: | 17,651 |
| Percentage6: | 10.5% |
| Swing6: | 7.6 |
| Map Size: | 300px |
| President | |
| Before Election: | Ankie Broekers-Knol |
| Before Party: | People's Party for Freedom and Democracy |
| After Election: | Ankie Broekers-Knol |
| After Party: | People's Party for Freedom and Democracy |
| Turnout: | 100,0% |
Elections of the Dutch Senate were held on 26 May 2015. The elected senators were sworn in on 9 June 2015.
The Senate is elected by the members of the States-Provincial of the country's twelve provinces, who had been directly elected by the citizens two months earlier, in the 2015 provincial elections. The value of a vote is determined by the population of the province in which the voter is a member of the States-Provincial. The seats are distributed in one nationwide constituency using party-list proportional representation.
| Province | Members | Population | Value | |
|---|---|---|---|---|
| South Holland | 55 | 3,600,784 | 655 | |
| North Holland | 55 | 2,762,163 | 502 | |
| North Brabant | 55 | 2,489,325 | 453 | |
| Gelderland | 55 | 2,026,393 | 368 | |
| Utrecht | 49 | 1,263,509 | 258 | |
| Overijssel | 47 | 1,140,659 | 243 | |
| Limburg | 47 | 1,118,054 | 238 | |
| Friesland | 43 | 646,324 | 150 | |
| Groningen | 43 | 584,104 | 136 | |
| Drenthe | 41 | 488,611 | 119 | |
| Flevoland | 41 | 401,503 | 98 | |
| Zeeland | 39 | 380,717 | 98 |
| Parties | Vote | Seats | |||
|---|---|---|---|---|---|
| Votes | Value | Won | +/- | ||
| People's Party for Freedom and Democracy | 90 | 28,523 | 13 | 3 | |
| Christian Democratic Appeal | 89 | 25,145 | 12 | 1 | |
| Democrats 66 | 67 | 21,997 | 10 | 5 | |
| Party for Freedom | 66 | 20,235 | 9 | 1 | |
| Socialist Party | 70 | 20,038 | 9 | 1 | |
| Labour Party | 63 | 17,651 | 8 | 6 | |
| GroenLinks | 30 | 9,520 | 4 | 1 | |
| Christian Union | 32 | 8,237 | 3 | 1 | |
| Party for the Animals | 18 | 6,073 | 2 | 1 | |
| Reformed Political Party | 17 | 4,597 | 2 | 1 | |
| 50PLUS | 14 | 4,388 | 2 | 1 | |
| Independent Senate Group | 14 | 2,652 | 1 | ||
| Total | 570 | 169,056 | 75 | ||
| align=left colspan=6 | Source: Kiesraad | ||||