Giraffe
Giraffa camelopardalis
77 cm
Maximum flaccid penis length of normal adult males, quoted as a reference value in a 2020 case report that cites Hall-Martin, Skinner & Hopkins 1978 (not read). Measuring method and n unknown.

The giraffe's penis is fibro-elastic and has an S-bend. At the tip is a long urethral process of the kind goats have.
Margin note: The tip looks borrowed from a goat, though as far as anyone knows the goat has never asked for it back.
Sources
- Meuffels J., Luther-Binoir I., Daffue W., Deacon F., Mitchell E.P. (2020) Testicular disorder of sexual development with cryptorchidism, penile hypoplasia and hypospadias in a giraffe (Giraffa camelopardalis giraffa). Journal of the South African Veterinary Association 91: a1971 doi:10.4102/jsava.v91i0.1971
- Aitken-Palmer C., Citino S. (2015) Giraffidae. In: Miller R.E., Fowler M.E. (eds) Fowler's Zoo and Wild Animal Medicine, Volume 8, pp. 602–610. Elsevier, St Louis link
- Dagg A.I. (1971) Giraffa camelopardalis. Mammalian Species 5: 1–8 doi:10.2307/3503830
- APK (2023) 'Giraffe penis.jpg': photograph of a preserved giraffe penis at the Icelandic Phallological Museum, Reykjavík. Wikimedia Commons, CC BY-SA 4.0 link
Drawn from
- Icelandic Phallological Museum specimen (Wikimedia Commons, APK 2023): A preserved flaccid giraffe penis in a jar, emerging from a wrinkled preputial sleeve; the free part is a smooth cylinder with a rounded, bent tip. Unscaled and foreshortened; the urethral process is not clearly visible.