This dataset presents the experimental data described in “Dogan et al., Interactions of large-scale free-stream turbulence with turbulent boundary layers, JFM, 2016”. DOI: http://dx.doi.org/10.1017/jfm.2016.435. PLEASE FOLLOW THE DOI FOR THE PAPER TO CITE WHEN REFERRING TO THE DATA. The data is presented for each figure in the paper (filenames are given accordingly). Using the data provided and normalisation parameters (where applicable), the plots in the paper could be reproduced. Column headings of the data are explained in the “Definitions” sheet of each data file. Further Information regarding the data files: 1. Data for figure 2 is given in Fig2.xlsx for four free-stream (FST) cases in separate sheets. 2. Data for figure 3 is given in Fig3.xlsx for four FST cases in separate sheets. Figure 8 in the paper can be reproduced from this data using given normalisation parameters. 3. Figure 4 to figure 7 can be reproduced with the data given in Fig4_7.xlsx file. 4. Data for figure 9 to 11 is given as the mean and r.m.s. values for each wall-normal location (all in inner scaling). Using the given normalisation parameters, any figures from 9 to 11 can be reproduced. 5. Data for figure 13 is given as separate files for each FST case. 6. Figure 14a can be obtained from the data provided for Figure 13. 7. Data for figure 15 is given in Fig15.xlsx for four FST cases in separate sheets. 8. Data for figure 16 is given in Fig16.xlsx for four FST cases in separate sheets.