Originating from Greek, the name Gailen is principally chosen for a boy. The meaning of Gailen is 'healer'. Gailen is primarily used in English-speaking countries. It is also the variation of the English name Galen. The oldest recorded birth for the first name Gailen was seen in 1883, with the highest use of the name in 1949. Some famous people named Gailen are Blake Gailen, an Israeli-American left-handed professional baseball outfielder in the Los Angeles Dodgers organization, and a Dominican social media star named Gailen La Moyeta has gained popularity through her Instagram account.