In the Research Resource “Pharmacogenomic landscape of head and neck squamous cell carcinoma informs precision oncology therapy” by Z. Gu et al., formatting errors were present in data file S1, including inconsistent numbers of decimal places across values in the raw data for fig. S2 and a duplicated header label of Fig. 6H. Data file S1 has now been corrected with consistent formatting of all numerical values. The original values themselves were correct, and no other analyses, figures, or conclusions were affected.