Kerry Whistles is a whistle manufacturer established in 1992, founded by designer and player Phil Hardy, who learned the craft from low whistle pioneer Bernard Overton. The company specializes in machined aluminum low whistles and has built its reputation around instruments aimed at both beginners and professional players in Celtic and traditional music.

The brand serves as an umbrella for several product lines, including the Chieftain, Optima, Busker, Kerry, and Thunderbird whistles. Notable models include the Chieftain V5 Low D (offered in tunable and fixed versions), the Optima series spanning sopranos, mezzos, altos, tenors, and low whistles across many keys, and the Optima Cobre soprano whistles. The instruments feature tuning slides on tunable models and a two-piece construction that has become characteristic of the brand.

Kerry Whistles has 2 products cataloged on Equipboard, including Whistles.