Gunnar B. Stickler (13 June 1925 – 4 November 2010) was a pediatrician who made substantial contributions to the field of pediatrics.

Gunnar B. Stickler was born June 13, 1925, in Peterskirchen, Germany and died on November 4, 2010, in Minneapolis, Minnesota, US.

In 1951 he emigrated to the US after being accepted for an internship at the Mountainside Hospital, Montclair, New Jersey, and subsequently for a fellowship in pediatrics at the Mayo Clinic.

Dr Stickler discovered that there were other members of the family with similar symptoms.

He published a landmark paper published in Pediatrics in 1965 with Edward O'Connell and Robert Feldt on the importance of small head circumference and its association with mental retardation and short stature.

He conducted a number of treatment trials of otitis media; this body of work eventually resulted in four publications and represented the first controlled treatment trial of otitis media in the United States.