Unionism

Unionism may refer to:

Trades

 * Community unionism, the ways trade unions work with community organizations
 * Craft unionism, a model of trade unionism in which workers are organised based on a particular craft or trade
 * Dual unionism, the development of a union or political organization parallel to and within an existing labor union
 * Industrial unionism, a labor union organizing method in which all workers in the same industry are organized into the same union
 * New Unionism, a term which has been used twice in the history of the labour movement to describe moves to broaden the union agenda
 * Open-source unionism, a term coined by academics Richard B. Freeman and Joel Rogers to explain a possible new model for organizing workers
 * Social Movement Unionism, a trend of theory and practice in contemporary trade unionism
 * Solidarity unionism, a model of labour organizing in which the workers themselves formulate strategy and take action
 * The organization of workers in trade unions

Politics

 * Preference for maintaining a political union as opposed to separatism
 * Unionism in Belgium
 * Union (American Civil War)
 * Ittihadism, ideology of the Committee of Union and Progress in the Ottoman Empire
 * Unification of Moldova and Romania, advocates are referred to as "Unionists"
 * Albanian unionism
 * Serbian–Montenegrin unionism
 * Spanish unionism

In the British isles

 * Unionism in the United Kingdom, support for the UK constituent countries remaining part of the United Kingdom state
 * Unionism in Ireland, support for Ireland (mainly Northern Ireland) being part of the UK, rather than a Republic of Ireland or an independent Northern Ireland
 * Unionism in Scotland, support for Scotland remaining part of the UK
 * Unionism in England, support for England remaining part of the UK
 * Unionism in Wales, support for Wales remaining part of the UK

Education

 * The organization of students in students' unions
 * Voluntary student unionism, a policy under which membership of student unions is voluntary

Religion

 * Christian ecumenism, initiatives aimed at worldwide Christian unity