Jennell Jaquays (born October 14, 1956) is an artist and game designer who has contributed to board games, role-playing games, and video games. She has worked as an illustrator or designer for TSR, Judges Guild, Iron Crown Enterprises, Flying Buffalo, Palladium, and many other companies. She began her career in the mid 1970s creating Dungeons & Dragons adventures for the fan magazine, The Dungeoneer. In the 1980s, she helped design video games for Coleco. In the early 1990s, she joined TSR as a cover illustrator. She also has worked as an artist for the computer version of Age of Empires III and for Halo Wars.
Jaquays graduated from Spring Arbor College in 1978 with a bachelor's degree in Fine Art. She helped establish the Guildhall at Southern Methodist University, a graduate level game development program. She has been living in Northern Texas and Atlanta, Georgia.
She is the mother of fellow game artist Zach Jaquays.