Seneca Casino may refer to:

• Seneca Allegany Casino, in Salamanca, New York
• Seneca Niagara Casino & Hotel, in Niagara Falls, New York

• Achar (disambiguation)
• Achard of Saint Victor
• Achard-Thiers syndrome
• A.C. Hardy
• Acharekar
• Ach'areli
• Achareli
• Ach'areli people
• Achareli people
• Ach'areli peoples
• Achareli peoples
• Achareli person
• Ach'areli person
• Achareli persons
• Ach'areli persons
• Achargaon
• A Charge To Keep
• Acharia apicalis
• Acharia (butterfly)
• Acharia (disambiguation)
• Acharia, Georgia
• Acharian
• Acharian dialect
• Acharian language
• Acharian people