Hanukkah

Hanukkah (sometimes spelled “Chanukah”) is a holiday usually celebrated in early to mid-December by Jewish people.

History
When Barry Allen came to Starling City to investigate a case, Barry asked Felicity Smoak if she had any plans for Christmas to which she replied “lighting my menorah.”

When Oliver Queen was throwing his campaign holiday party, Donna Smoak and Felicity included Hanukkah decorations to represent their Jewish heritage.

Known Celebrators

 * Donna Smoak
 * Felicity Smoak
 * Lily Stein
 * Martin Stein (deceased)

Season 2

 * ”Three Ghosts” (indirectly mentioned)

Season 4

 * ”Dark Waters” (indirectly mentioned)

Season 3

 * ”Beebo the God of War” (mentioned)