William Seager may refer to:

• William Seager (philosopher) (born 1952), Canadian philosopher
• William Henry Seager (1862–1941), Welsh shipping magnate and Liberal Party politician

• Rana (title)
• Rana tlaloci
• Rana T.P.S. Chhina
• Ranatra
• Rana Tractor
• Ranatra Fusca
• Rana travancorica
• Rana trilobata
• Rana tsushimensis
• Ranat thum lek
• Rana tuberculata
• Rana Udai Singh II
• Ranau (disambiguation)
• Ranau Lake
• Ranavalona I of Madagascar
• Rana varians
• Ranavav
• Rana Venenosa
• Rana venulosa
• Rana Verde Norteafricana
• Rana vertebralis
• Rana virescens areolata
• Rana virescens austricola
• Rana virgatipes
• Rana volkerjane