The phrase "fellow alumni" refers to people who have graduated from the same school or university as you. They are your peers or companions who share the experience of having attended the same educational institution. Full definition
Keep networking with fellow alumni and members of industry associations as well as anyone who actively participates in the same charitable, community, or special interest organizations as you do. (njresumeservice.com)
We still have access to schedule office hours and a helpful network of thousands of fellow alumni. (entrepreneur.com)
For example, the search tool can be used to find fellow alumni working in a specific industry. (learnhowtobecome.org)