Stuart Parker may refer to:

• Stuart Parker (politician) (born 1972), former leader of the Green Party in British Columbia, Canada
• Stuart Parker (footballer) (born 1954), English football manager and former footballer
• Stuart Parker (footballer, born 1963), English football goalkeeper who played for Wrexham
• Stuart Parker (Neighbours), a fictional character from the Australian soap opera Neighbours
• Stuart Parker, CEO of USAA (United Services Automobile Association)

• Trimerophytophyta
• Trimeropsida
• Trimerorhachis greggi
• Trimerorhachis insignis
• Trimers (chemistry)
• Trimestre
• Trimesulf
• TriMetals Mining
• TriMetals Mining Inc.
• Trimethin
• Trimethioprim
• Trimethobenzamide Hydrochloride
• Trimethoprim Hydrochloride
• Trimethoprim/sulfadoxine
• Trimethoprim-sulfamethoxasole
• Trimethopriom
• Trimethoxybenzaldehyde
• Trimethoxymethylsilane
• Trimethoxypropiophenone
• Trimeth/Sulfa
• Trimethylacetaldehyde
• Trimethylamine:5-hydroxybenzimidazolylcobamide Co-methyltransferase
• Trimethylamine-corrinoid protein Co-methyltransferase
• Trimethylamine---corrinoid protein Co-methyltransferase
• Trimethylamine methyltransferase