# Belit Onay re-elected mayor of Hannover

*Politics. 55% certain. Sunday, 13 September 2026*

> Speculative fiction assembled from prediction-market prices. This has not happened.

**In the same round Katharina Pötter won the Osnabrück mayoralty**

Mayoral elections in five German cities concluded on Sunday, 13 September. Voters in Salzgitter chose Frank Klingebiel as mayor, while Braunschweig elected Thorsten Kornblum. In Osnabrück, Katharina Pötter won, Hannover re-elected Belit Onay, and Göttingen appointed Onyeka Oshionwu.

The Salzgitter ballot closed on Sunday, 13 September. The count confirmed Frank Klingebiel as the victor.

Braunschweig's election also finished on Sunday, 13 September. Thorsten Kornblum emerged as the winning candidate. The outcome sealed the city's leadership transition for the coming term.

In Osnabrück, the election concluded on Sunday, 13 September with Katharina Pötter emerging as mayor. The Hannover contest likewise finalized that day, returning Belit Onay to the mayor's office. Both cities completed their voting processes without reported irregularities.

Göttingen's Mayoral election wrapped up on Sunday, 13 September. Onyeka Oshionwu secured the Mayoral seat. The outcome finalized the series of municipal votes across the region.

## Analysis

The simultaneous conclusion of Mayoral races in five cities provides a snapshot of local political sentiment across Lower Saxony, showing both continuity and change within municipal leadership.

Incumbent victories in Hannover and the election of new faces in Salzgitter, Braunschweig, Osnabrück and Göttingen suggest a mixed pattern of voter preference for experience and fresh perspectives, which could shape policy priorities at the city level.

These results may influence the balance of power among regional political groups, as each mayor brings a distinct agenda that could affect cooperation on infrastructure, education and economic development projects shared across the area.

Uncertainty remains about how the newly elected mayors will align with state and federal initiatives, and whether their combined influence will alter broader political dynamics in upcoming state elections.

## What this was built from

- **Osnabrück Mayoral Election Winner**: Katharina Pötter, 72%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/osnabruck-mayoral-election-winner-20260723172818472)
- **Hannover Mayoral Election Winner**: Belit Onay, 66%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/hannover-mayoral-election-winner-20260723155039214)
- **Braunschweig Mayoral Election Winner**: Thorsten Kornblum, 94%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/braunschweig-mayoral-election-winner-20260723164513786)
- **Salzgitter Mayoral Election Winner**: Frank Klingebiel, 96%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/salzgitter-mayoral-election-winner-20260723163216446)
- **Göttingen Mayoral Election Winner**: Onyeka Oshionwu, 55%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/gottingen-mayoral-election-winner)