Vail is a surname. Notable people with the surname include:

Construction kit for manufacture of handles, hand vails, guard barriers, small furniture and the like
Comparing the efficiency of the laccase-NHA and laccase-HBT systems in eucalyptus pulp bleaching
Effect of street trees on microclimate and air pollution in a tropical city
Efficient FPGA implementation of Cordic algorithm for circular and linear coordinates
Evaluation of Commercially Available Diagnostic Test Kits for Rubella
Mapping Urban Tree Species Using Very High Resolution Satellite Imagery: Comparing Pixel-Based and Object-Based Approaches
Statistical power estimation for FPGAs
Biophysical parameter estimation with adaptive Gaussian Processes
Patterns of Insect Abundance and Distribution in Urban Domestic Gardens in Bangalore, India
Development of the optical multiplexer board prototype for data acquisition in TileCal experiment