Due to the increase in the number of conflicts, which lead to the growth of tension and destabilization of the system of international relations, the search for new mechanisms for their settlement and new participants who are able to introduce a positive agenda through interaction with all parties is an urgent research task. This paper focuses on international non-governmental organizations (INGOs), acting as such new actors and taking part in the settlement of the conflict in Syria. The purpose of the article is to analyze their contribution to the Syrian peace process, to consider their possibilities and limitations. The methodology is based on discourse analysis and case studies. The case of Syria was chosen because of the ongoing nature of the civil war there, as well as the fact that INGOs have proposed a number of new initiatives to resolve the conflict, which makes this study novel. The study identified the main organizations that propose a peaceful settlement of the conflict, and also identified the main trends in the participation of INGOs in the crisis settlement in Syria. Thus, participating in the peace process, they also implement peacebuilding projects, actively cooperate with local INGOs, and switch to remote work formats due to security problems. However, the analysis of their proposals for the peace process also revealed the main problems of the activities of INGOs within the framework of track II diplomacy, which consist in their neglect of the principle of impartiality. The ability of INGOs to promote their initiatives is also influenced by the dynamics of traditional diplomacy. The key takeaway is that, despite the complexity of the Syrian peace process and the dominant role of traditional diplomacy, INGOs have a significant positive impact on the peace process as they promote grassroots cohesion among the Syrian population and encourage them to form civil associations similar to INGOs, which are also gradually beginning to look for ways of national reconciliation.