The Google Highly Open Participation Contest was a contest run by Google during 2007-2008 aimed at high school students. The contest was designed to encourage high school students to participate in open source projects. It was succeeded by Google Code-in.
The contest was open to students thirteen years of age or older who were then currently enrolled in high school (or equivalent pre-university or secondary school program).
Prizes offered by Google included a contest T-shirt and a participation certificate for completing at least one task and US$100 for every three tasks completed to a maximum of US$500. There was a grand prize of a trip to the Google headquarters for an award ceremony. Each participating open source project selected one contestant to receive the grand prize, for a total of 10 grand prize winners.