The vibrational overtone spectra of ferrocene, acetylferrocene, ruthenocene, and cyclopentadienyltitanium trichloride have been recorded in the third overtone region of the C-H stretch vibration, 4 nu(C-H). All of the spectra display four peaks in this region. The transition wavenumbers and relative intensities of the metallocene spectra are invariant to changes of the metal (iron, ruthenium, or titanium) or the ligand (chloride or acetylcyclopentadienyl). The overtone spectrum of gaseous cyclopentadiene in the near infrared and visible regions has been recorded for comparison to the metallocene spectra. The aliphatic, nu(C-H)B, and olefinic, nu(C-H)(0), local mode vibrational progressions were identified. The 4 nu(C-H0) in cyclopentadiene occurs at the same wavenumber as the lowest energy peak in the metallocenes. Shoulders on the 4 nu(C-H0) band contour in cyclopentadiene correspond to the metallocene transition wavenumbers. It is argued that the transitions corresponding to these shoulders were dark in the cyclopentadiene overtone spectrum but became bright in the metal-coordinated ring.