The Multiple Paths of Lone Parenthood is a longitudinal qualitative study as part of a larger project on lone parenthood. This study follows 40 parents in the French-speaking part of Switzerland with sole or primary physical custody of at least one child between ages 0 and 13 at the time of the first interview, and who had no co-resident adult, mainly as a result of separation or divorce, but including exceptional cases of bereavement or where women had been lone parents since the transition to parenthood. The first wave of interviews was conducted in 2012-2013 and followed up every 2 to 3 years. Each subsequent wave of field interviews has focused on a specific element of lone parenthood, including one in 2020 on the impact of the COVID-19 pandemic.