Rumors began circulating Saturday regarding the posting, said Sinbad, who first got a telephone call from his daughter.
The gossip quieted, but a few days later the 50-year-old entertainer said the phone calls, text messages and e-mails started pouring in by the hundreds.
"Saturday I rose from the dead and then died again," the Los Angeles-based entertainer told The Associated Press in a phone interview.
The St. Petersburg-based company, which describes itself as "the free encyclopedia that anyone can edit," leaves it to a vast user community to catch factual errors and other problems.
Apparently, someone edited it to say Sinbad died of a heart attack. By the time the error was caught, e-mail links of the erroneous page had been forwarded to hundreds of people.
A note on Sinbad's Wikipedia page Thursday night said the site has been temporarily protected from editing to deal with vandalism.
Wikipedia was created in 2001 as a Web research tool. It has more than 1.6 million articles in English, and millions more in other languages, contributed by members of the public.
A telephone call and an e-mail left for Wikipedia were not immediately returned Thursday night.
When asked if he was upset about the mix-up, Sinbad, whose real name is David Adkins, just laughed.
"It's gonna be more commonplace as the Internet opens up more and more. It's not that strange," the Los Angeles-based entertainer told the Associated Press in a phone interview.
Sinbad, who is currently on the road doing stand-up, said he hasn't received an apology from the Internet site. He has appeared in the films, "Houseguest," and "Jingle All the Way."