Donald Raab, creator of an open source Java library named Eclipse Collections, is an international Java and open source conference speaker. With thirty-five years of experience programming in twenty different programming languages, he was recognized in 2018 as a Java Champion.

Donald remains a project lead and committer for the Eclipse Collections project. He is the author of the book "Eclipse Collections Categorically: Level up your programming game." Donald was a contributing author to "97 Things Every Java Programmer Should Know" from O'Reilly Media. He was the winner of the JCP Member/Participant of the Year Award for 2025.