The present disclosure relates to bifunctional compounds, which find utility as modulators of Burton's Tyrosine Kinase (BTK). In particular, the present disclosure is directed to bifunctional compounds. One end of a bifunctional compound includes a Von Hippel-Lindau, Cereblon, Inhibitors of Apotosis Proteins, or Mouse Double-Minute Homolog 2 ligand that binds to the respective E3 ubiquitin ligase. The other end of a bifunctional compound includes a moiety that binds a target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. Diseases or disorders that result from aggregation, accumulation, and/or overactivation of the target protein can be treated or prevented with compounds and compositions of the present disclosure.