In this work, useful measurement results of the propagation channel characteristics in an indoor office environment at 26 GHz are presented. The parameters of both the floating-intercept (FI) and close-in (CI) free space reference distance path loss models have been derived from channel measurements. The time dispersion characteristics have been analyzed in terms of both the root-mean-square (rms) delay spread and the coherence bandwidth. These results allow us to have a better knowledge of the propagation channel characteristics and can be also used to evaluate the performance of fifth generation (5G) networks in indoor office scenarios.