This paper reports on the experiences of the authors teaching action research workshops as professional development for language teachers in Europe during the COVID-19 pandemic. It describes work carried out for Action Research Communities for Language Teachers, which is funded under the Training and Consultancies programme of the European Centre for Modern Languages of the Council of Europe as part of its aim to promote quality language education in Europe. The paper focuses on the necessary pivot from face-to-face to online action research workshops and project development in a difficult global context for a group of teachers in Lithuania. It outlines the challenges experienced by the authors and teacher participants, the lessons learned in online teaching of action research, and the positive outcomes for language teachers in setting out on their action research journeys. The paper contributes to the literature on action research in language education and professional development during COVID-19.