There are no minimums or maximums, but the FAA can limit operations for some aviation crew positions.
AME Instructions for the Exam
Measure and record the applicant's height in inches. Although there are no medical
standards for height, exceptionally short individuals may not be able to effectively reach
all flight controls and must fly specially modified aircraft. If required, the FAA will place
operational limitations on the pilot certificate.
FAA AME Guide Version 12/03/2025