Virtual Combinatorics Seminars

On this page you will find a list of seminars (mostly combinatorics, some discrete geometry) arranged by days and times, which change so please double-check the seminar websites. This is not an exhaustive list. Although some of these seminars have gone back to in-person, the recorded talks when they were virtual are still available at the links.

A very large list of math seminars is available at and CS Theory talks are available here

Additionally, take a look at this amazing Round the World Relay in Combinatorics.

All times below are Eastern Standard Time (ET). If you are planning a new seminar, you may find this list useful to avoid clashing with existing seminars.


10:00 am ET: Extremal and probabilistic combinatorics webinar (Videos available)

11:30 am ET: Waterloo Algebraic Graph Theory Seminar (Videos available)

11:30 am ET: Women in Network Science (WiNS) (Videos available)


10:00 am ET: Warwick DIMAP seminar (Slides available)

2:00 pm ET: NYC Geometry Seminar (Videos available)

2:00 pm ET: Oxford Discrete Mathematics and Probability Seminar (Videos available)

3:00 pm ET: Auburn Discrete Math Seminar

3:00 pm ET: Graphs and Matroids Seminar (Videos available)

3:45 pm ET: Georgia Tech Graph Theory Seminar (Videos available)

5:30 pm ET: SFU Discrete Math Seminar


10:15 am ET: Jagiellonian TCS seminar

1:00 pm ET: Graduate Online Combinatorics Colloquium #GOCC (Videos available)

1:00 pm ET: VCU Discrete Mathematics Seminar 

2:30 pm ET: Atlantic Graph Theory Seminar

7:00 pm ET: Washington Combinatorics and Geometry Seminar


2:30am ET: IBS Virtual Discrete Math Colloquium (Videos available)

8:15 am ET: Graz Combinatorics Seminar

10:00 am ET: Virtual Seminar on Algebraic Matroids and Rigidity (Ended, but videos are available)

10:15 or 11:15 am ET: Coopenhangen-Jerusalem Combinatorics Seminar   (Videos Available)

3:00 pm ET: Princeton Discrete Math Seminar (Videos available)

3:00 pm ET: New York Number Theory Seminar

3:30 pm ET: Cornell ACO Seminar

4:00 pm ET: Talk Math With Your Friends #TMWYF (Videos available, combinatorics and general math talks for a broad audience, good place to promote combinatorics)

5:00 pm ET: Rutgers Experimental Math Seminar (Videos available)


8:00 am ET: Budapest Big Seminar (Videos available)

8:00 am ET: Bordeaux Graph Theory Seminar (Videos available)

11:00 am ET: 05C50 Online 

11:00 am ET: Graph-Searching Online Seminar (videos available)

12:00 pm ET: New York Combinatorics Seminar #NYCombinatorics (Videos available)