CASKaudio is a sound design and audio sample label run by Scottish-born, Queensland, Australia–based musician and producer Cask J. Thomson. The catalog focuses on sample packs, impulse responses, virtual instruments, presets, and sound effects aimed at music producers, composers, and media designers, with releases distributed across Bandcamp, Gumroad, itch.io, and Patreon.

Notable releases include the Tubular Bells Sample Pack, the Cassette Piano sampled instrument, and The Great British Spring impulse response pack, captured from a fully restored vintage Bandive dual-channel spring reverb. A number of free sample collections and impulse response sets, such as Creative Impulses Vol. 1, are also published under Creative Commons licensing through the affiliated CaskZone blog and a public GitHub repository.

The label sits alongside Thomson's broader output as a recording artist under the CASK moniker and his AudioDefine Records imprint, and draws on field recordings, vintage drum machines, synthesizers, and guitar amplifier captures from his personal studio.

CaskAudio has 2 products cataloged on Equipboard. Their gear is featured by 1 artist, with the strongest followings in Rock. Notable users include Cask J. Thomson.