The Lausanne Congress of 1867 is the common name assigned to the 2nd General Congress of the International Workingmen's Association (IWA), generally known as the First International. The meeting was held in the city of Lausanne, Switzerland from September 2 to 8, 1867. It was attended by 71 delegates, representing the socialist and labor movements of Switzerland, France, Germany, Great Britain, Italy, and Belgium.