The request comes amid mounting pressure for the NFL's Washington Redskins to change its mascot because it's offensive to American Indians.
The Arab mascot has been around since the 1920s and was chosen to recognize the area's reliance on date farming, traditionally a Middle Eastern crop. The nearby community of Mecca also pays homage to the Middle East.
The mascot has evolved from a turban-wearing horseman carrying a lance to a standing figure with a scowl and a headscarf.
Superintendent Darryl Adams said the topic will be discussed at a Nov. 21 school board meeting. He said he was taken aback by the "Arab" name when he first was hired two years ago.
"Being an African-American from the Deep South, I'm sensitive to stereotyping," Adams told the newspaper. "But in this context, when this was created it was not meant in that way. It was totally an admiration of the connection with the Middle East."
Adams said the letter from the anti-discrimination group was the first time the school had been criticized for stereotyping in the past two years.
Some school alumni have defended the mascot, saying it's a matter of pride.
"There was no intention to demean Arabs or be discriminatory in any way," said David Hinkle, a 1961 graduate. "I don't think it's right to decide now that you can't do that anymore. It is political correctness run amok, I would say."
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Information from: The Desert Sun, http://www.mydesert.com/