ibausil — Internationale Baustofftagung
16–18 September 2026
Three days in September, every few years since 1964
Three days that fill the congress hall with concrete chemistry — and have done since 1964.
Annual congress of the North-East German Society for Gynaecological Oncology
A regional cancer-medicine society brings its annual congress to the hall in November.
In 52 days
5–7 November 2026
The North-East German society for gynaecological oncology holds its annual meeting at the Weimarhalle in early November, under the title 360° Gyn-Onkologie.
This is the society for the north-east — the states that were the GDR, plus Berlin. A speciality organising itself regionally says something about how German medicine actually works: the national congresses set the field, and meetings like this one are where the doctors who will treat you next week compare notes. Weimar sits near the middle of that region, which is a large part of why the town's congress trade exists at all.
Dates to be confirmed
16–18 September 2026
Three days in September, every few years since 1964
Three days that fill the congress hall with concrete chemistry — and have done since 1964.
23–24 September 2026
Two days in September, every year
Germany's tenancy lawyers meet here every year — and both sides of the argument organise it together.
25–26 September 2026
Two days in late September
The state's dental profession takes the congress hall for two days in September.
10 October 2026 · Hauptlauf 12:15 Uhr, Staffel 12:25 Uhr
The Saturday of the Onion Market, in October
Eleven kilometres through the old town and the Ilm park, run on the Saturday of the Onion Market.
congress centrum weimarhalle.
Organiser
Nord-Ostdeutsche Gesellschaft für Gynäkologische Onkologie
Facts checked against the organiser on 29 August 2026