Giesler (plural Gieslers)
- A surname.
- According to the 2010 United States Census, Giesler is the 15611st most common surname in the United States, belonging to 1872 individuals. Giesler is most common among White (97.44%) individuals.
- Geisler, Reigels, Reigles, Riegels, Riegles, Seigler, Siegler, leigers, liegers, reigles, riegels