| Judy Chang | |
| Office1: | Member of the Federal Energy Regulatory Commission |
| President1: | Joe Biden |
| Term Start1: | July 15, 2024 |
| Preceded1: | Allison Clements |
| Office2: | Massachusetts Undersecretary of Energy and Climate Solutions |
| Term Start2: | June 2020 |
| Term End2: | January 2023 |
| Governor2: | Charlie Baker |
| Preceded2: | Patrick Woodcock |
| Succeeded2: | Michael Judge |
| Spouse: | James MacNeil |
| Party: | Democratic |
Judy Wei Ya Chang is an American government official and academic who has been a member of the Federal Energy Regulatory Commission (FERC) since 2024. She previously served as undersecretary of the Massachusetts Executive Office of Energy and Environmental Affairs under Governor Charlie Baker.[1]