Abstract

Addressing loneliness is a global public health priority; however, its complexity necessitates collaboration across multiple sectors. Intersectoral collaborations (ISCs) connect diverse stakeholders to take collective action on social issues. In 2022, Women's Age Lab formed an ISC to address loneliness in older adults in Canada, comprising national, provincial and local organizations. The ISC identified stigma, system fragmentation and ineffective solutions as challenges to addressing loneliness. Mapping existing initiatives, advocating for a national strategy and prioritizing research were discussed as opportunities for collective action. These findings can help support other communities wishing to unite organizations to address loneliness.