Wakayama may refer to:

• Wakayama Prefecture, a prefecture of Japan
• Wakayama (city), the capital city of Wakayama Prefecture, Japan
• Wakayama Station, a train station in Wakayama, Wakayama
• Wakayama University, a national university in Wakayama, Wakayama
• Wakayama Domain, a Japanese feudal domain in Kii Province
• Wakayama Soryu, a mosasaur

• Bokusui Wakayama (若山 牧水, 1885–1928), Japanese writer
• Genzō Wakayama (若山 弦蔵, 1932–2021), Japanese voice actor and actor
• Manami Wakayama (若山 愛美, born 1986), Japanese idol
• Shion Wakayama (若山 詩音, born 1998), Japanese voice actress
• Takimi Wakayama (若山 滝美, 1914–1941), Japanese water polo player
• Tomisaburo Wakayama (若山 富三郎, 1929–1992), Japanese actor