This document outlines 15 common fundraising mistakes that can frighten investors and cause them to avoid investing in a startup. Some key mistakes include targeting the wrong type of investor, building unrealistic financial forecasts, having a team without expertise in the problem area, weak marketing or sales strategies, and lying to investors about company metrics or facts. The author is the managing partner of Imperious Group VC, a seed-stage fund based in Ukraine, and advises entrepreneurs on fundraising and startup consulting.