While there is no doubt about the importance of access to financial resources, businesses face several problems in getting such access. Recently, crowdfunding has been considered an alternative solution to this problem. For entrepreneurs and businesses in various fields, including tourism, crowdfunding has become an influential source of finance. This chapter aims to categorize crowdfunding models and identify the reasons why people support them. Also, while introducing examples of crowdfunding in tourism, the opportunities of this method for tourism businesses are also discussed. Finally, by reviewing the current knowledge and identifying the gaps, suggestions for future studies are made.