Social participation is positively associated with older adults’ health. Health-care services, therefore, need to empower older adults to adapt to the social changes that accompany aging. This systematic review, with a metasynthesis of qualitative studies, aimed to describe and develop an understanding of home-dwelling older adults’ (65 yrs+) experiences of using strategies to maintain and foster their social participation. The main search was performed in March 2022 using the PubMed, CINAHL, PsycINFO, and AMED databases and included peer-reviewed articles published between 2012 and 2022. A total of 35 full-text articles from 15 different countries were included and assessed for quality by the assessment tool for qualitative studies provided by the Critical Appraisal Skills Programme (CASP). The metasynthesis resulted in the main theme: strategically creating routines that foster social participation and two main categories: inward-looking strategies for social participation and outward-looking strategies for social participation. Each main category contained three subcategories. The findings suggest that for perceiving social participation, it is important for older adults to create routines with patterns of activities and to be able to engage in these activities. The findings further reflect that older adults use earlier experiences of social participation to facilitate the making of routines. This indicates that health-care interventions supporting older adults’ social participation must be applied early and with a health-promotive focus. Conclusively, researchers need to develop interventions that support older adults in healthy activity patterns by raising awareness of how to use inward-looking and outward-looking strategies to create routines for social participation. The findings further suggest that older adults’ possibilities for social participation could be supported by designing accessible venues that facilitate spontaneous meetings and encourage older adults’ own choices and initiatives for social participation.