A transition toward the circular economy (CE) will be key to addressing future environmental and economic challenges, such as environmental pollution and resource scarcity. However, when introducing circular solutions, companies often face complex and disruptive changes that affect many stakeholders and require new innovation practices. This study investigates open circular innovation by analyzing the status quo of circular innovation, discussing the relevance and role of different stakeholders, and examining approaches for open circular innovation processes. The study employs a qualitative research design, including 14 in-depth interviews with CE and innovation experts. The findings indicate that companies currently focus on closed innovation approaches or collaborate with only one stakeholder at a time when developing circular innovations. Stakeholder groups, such as customers, suppliers, and academia, play a crucial role in the innovation process, whereas direct collaborations with governments and competitors are seen controversially. An open innovation network approach combined with crowdsourcing is regarded as the most promising for developing circular solutions. This study contributes to connecting open innovation with CE research and provides new knowledge at this interface. Additionally, this research gives managers guidance on how to approach open circular innovation and thus supports companies on their way toward a CE.