Teacher unrest is an important research object in the literature on teacher unionism in Latin America. This article makes a novel contribution to this traditional topic, presenting statistical data on primary and secondary teacher strikes in Argentina, Brazil and Mexico from 2012 to 2022. This approach highlights important differences in strike activity between the public and private school sectors, between public school teachers in different states within each country, and between the three countries in terms of the configuration of the levels of bargaining at which teacher strikes take place. The category of 'teacher labour regimes' allows understanding these differences in a consistently theoretical manner, underlining the role of agents in configuring and reconfiguring labour regimes, the importance of labour control for the labour regime dynamics and the multi-scalar structuration of labour regimes.