This volume constitutes the thoroughly refereed post-conference proceedings of the Third Conference on E-Voting and Identity, VOTE-ID 2011, held in Tallinn, Estonia, in September 2011. They are organized in topical sections on Norwegian internet voting, voting systems I and II, prêt à voter and trivitas, and experiences.

The Norwegian Internet Voting Protocol.- Transparency and Technical Measures to Establish Trust in Norwegian Internet Voting.- Internet Voting System with Cast as Intended Verification.- Linear Logical Voting Protocols.- Efficient Vote Authorization in Coercion-Resistant Internet Voting.- The Bug That Made Me President a Browser- and Web-Security Case Study on Helios Voting.- An Efficient and Highly Sound Voter Verification Technique and Its Implementation.- Single Layer Optical-Scan Voting with Fully Distributed Trust.- Paperless Independently-Verifiable Voting.- Feasibility Analysis of Pret a Voter for German Federal Elections.- Pret a Voter with Write-Ins.- Trivitas: Voters Directly Verifying Votes.- The Application of I-Voting for Estonian Parliamentary Elections of 2011.- Towards Best Practice for E-election Systems: Lessons from Trial and Error in Australian Elections.- On the Side-Effects of Introducing E-Voting. Transparency and Technical Measures to Establish Trust in Norwegian Internet Voting.- Internet Voting System with Cast as Intended Verification.- Linear Logical Voting Protocols.- Efficient Vote Authorization in Coercion-Resistant Internet Voting.- The Bug That Made Me President a Browser- and Web-Security Case Study on Helios Voting.- An Efficient and Highly Sound Voter Verification Technique and Its Implementation.- Single Layer Optical-Scan Voting with Fully Distributed Trust.- Paperless Independently-Verifiable Voting.- Feasibility Analysis of Pret a Voter for German Federal Elections.- Pret a Voter with Write-Ins.- Trivitas: Voters Directly Verifying Votes.- The Application of I-Voting for Estonian Parliamentary Elections of 2011.- Towards Best Practice for E-election Systems: Lessons from Trial and Error in Australian Elections.- On the Side-Effects of Introducing E-Voting.

This volume constitutes the thoroughly refereed post-conference proceedings of the Third Conference on E-Voting and Identity, VOTE-ID 2011, held in Tallinn, Estonia, in September 2011. The 15 revised full papers presented were carefully reviewed and selected from 33 submissions. They are organized in topical sections on Norwegian internet voting, voting systems I and II, prêt à voter and trivitas, and experiences.