This dataset supports the research article analyzing the structure of multistakeholder collaboration networks in the Cap Go Meh Festival in Singkawang City, Indonesia, using Social Network Analysis (SNA). The festival is recognized as a UNESCO Intangible Cultural Heritage and involves seven stakeholder groups: Festival Committees, Sponsorships, Academics, Cultural Communities, Business Actors (MSMEs), Local Communities, and Media. Data were collected through a structured questionnaire administered to 264 respondents selected via stratified random sampling. The dataset includes the full research instrument (questionnaire), network visualizations, and all analytical tables generated using Gephi software. The files enable replication of the network metrics reported in the study, including degree centrality, betweenness centrality, eigenvector centrality, graph density, average path length, and modularity. The dataset is valuable for researchers interested in collaborative governance, cultural event management, stakeholder analysis, and network science.