Online gig economy has been rapidly growing and shown a promising prospect in Indonesia, but little is known about familiarity and participation of Indonesians in this new business model. This study tries to fill that gap in literature by exploring familiarity and participation in four different types of online gig economy, i.e. transportation-based service (TS), professional service (PS), asset-sharing (AS), and handmade goods, household, and miscellaneous services (HGHM) among Indonesians based on an online survey of 385 participants. The primary data were analyzed by using descriptive statistics, multiple correspondence analysis (MCA) and logistic regression models to show that most Indonesians are TS gig users whereas PS is the most preferred category by Indonesian gig workers. This study found some differences in characteristics of gig users and gig workers in different categories of online gig economy. Most notably, it suggests the existence of sexual, generational, geographical, and socioeconomic gaps among Indonesians when it comes to their participation in different types of online gig economy. Despite the high participation rate in the online gig economy, the familiarity rate in both the concept and the term "online gig economy" is relatively low. The findings from this study can shed light and serve as a steppingstone for further research on the online gig economy as a new business model and dig deeper into its potential in Indonesia