The aims of this study were to describe fathers' social networks and their experience of social support after the death of a child. The sample consisted of 8 fathers who had lost a child under the age of 3. The data were collected with open-ended questions and interviews. Data analysis used qualitative content analysis. The fathers' social support networks varied over time and between fathers. The support networks included either just the spouse or the spouse and other people. Social relationships broke down and new relationships formed in their place. The fathers experienced social isolation but also deliberately isolated themselves from human relationships. The support the fathers received was felt to be both positive and negative. Peer support was only positive. Support from professionals was reported to be important but was also criticized. In particular better family care, informal support, and systematic support after leaving the hospital were expected.