The disclosure provides, in various embodiments, polypeptides (e.g., antibodies and antigen binding fragments thereof) that specifically bind to a thymic stromal lymphopoietin (TSLP) (e.g., a full-length human TSLP). The disclosure also provides, in various embodiments, fusion proteins comprising one or more of the polypeptides, polynucleotides encoding the polypeptides, vectors and host cells suitable for expressing the polypeptides, and methods for treating a TSLP-associated disease or condition.