Stanisław J. Haller
International Sigma Model United Nations
September 2026

SIGMAUN 2026
International Sigma Model United Nations

Chair
Zjazd Lewaków 2024
Sejm Model United Nations
October 2025

SejmMUN 2025
Sejm Model United Nations

Secretary General
Liceum Artes Liberales Model United Nations
April 2025

LALMUN 2025
Liceum Artes Liberales Model United Nations

Delegate
United Nations Economic and Social Council
Colombia
Best Delegate

Minecraft International Diplomat Model United Nation
April 2025

MIDMUN 2025
Minecraft International Diplomat Model United Nation

Chair
Interdimensional Trade & Security Alliance
Gdańsk Model United Nations
November 2024

GDNMUN 2024
Gdańsk Model United Nations

Delegate
Security Council
Pakistan
Lelewel Model United Nations
October 2024

LeleMUN 2024
Lelewel Model United Nations

Delegate
Security Council
Russian Federation
Tricity Model United Nations
September 2024

TriMUN 2024
Tricity Model United Nations

Delegate
Security Council
Iraq
WSB Merito Universities Model United Nations
May 2024

MeritoMUN 2024
WSB Merito Universities Model United Nations

Delegate
Security Council
Türkiye
Prus High Model United Nations
March 2024

PrusMUN 2024
Prus High Model United Nations

Delegate
Security Council (SC)
Algeria
Pomerania Model United Nations
October 2023

PoMUN 2023
Pomerania Model United Nations

Delegate
Economic and Social Council
Senegal

Unverified conferences

March 2025

SteviMUN

Warsaw, Poland
Security Council
United Kingdom
Submitted Resolution