ITALIAN Republic Day is a celebration of national pride and culture.
Marconi Club chief operating officer Tony Zappia said the traditions of Italian Republic Day, or Festa della Repubblica, dated back to the constitutional referendum of 1946, when Italian citizens overwhelmingly voted for a republic rather than a monarchy.
"In that moment modern Italy was born," Mr Zappia said.
"It has since become a national holiday and a proud celebration of Italian culture the world over, including Australia, which boasts nearly one million people of Italian ancestry.
"Club Marconi at Bossley Park is the epicentre of all things Italian in western Sydney and will celebrate Republic Day with a spectacular outdoor community gala day, showcasing the very best of Italian culture, entertainment, food, wine and traditions.
Mr Zappia said more than 20,000 people were expected to take part in the event.
"This is the seventh year we have held Italian Republic Day," he said.
"From 2010 it became a bigger event with Mass being held and our planned entertainment has grown bigger and better each year."
Mr Zappia said people should come to the event because it was a great opportunity to experience all things Italian and enjoy a family day out.
"Sharing the best of Italian culture with the people of Sydney, Club Marconi is hosting the biggest day on the Italian calendar," he said.