Objective: The return-to-work selfefficacy is a major psychological determinant of the return to work of cancer survivors. French investigations lack of a suitable tool for its assessment. The aim of this study was to propose a French translation and adaptation of the "Return to Work Self-Efficacy' scale - 11 items" (RTWSE-11) initially proposed in Dutch by Lagerveld et al. (2010).Methods: Following translation/back-translation stages, supplemented by expert consensus meetings, interviews were conducted with 13 cancer survivors to assess the degree of clarity, simplicity and ambiguity of the various items in the French version of the RTWSE-11.Results: The main modifications inherent in the French adaptation of the RTWSE-11 concerned the reformulation of the Likert scale modalities and the inversion of three negative items into positive ones.Conclusion implications: The French translation and adaptation of the RTWSE-11 were particularly faithful to the semantic, idiomatic, functional, experiential, conceptual and operational aspects of the original version. The modifications requested by the study participants, in particular because of cognitive difficulties that do not facilitate comprehension of the reversed items, will be discussed in greater detail. In the light of this study, the use of this questionnaire with cancer survivors requires a revision of the reversed items for better readability and understanding of the tool on the part of patients.