The Google Highly Open Participation Contest is a contest run by Google in 2007-8 aimed at high school students. The contest is designed to encourage high school students to participate in open source projects. 
The contest is open to students thirteen years of age or older who are currently enrolled in high school (or equivalent pre-university or secondary school program).
Prizes offered by Google include a contest t-shirt and participation certificate for completing at least one task and US$100 for every three tasks completed to a maximum of US$500 (for fifteen completed tasks). There is a grand prize of a trip to the Google headquarters for an award ceremony. Each participating open source project selects one contestant to receive the grand prize.