WILLIAM remained king in 2009, Olivia made a comeback and celebrity chefs were flavour of the year.

William retained its crown as the most popular name for baby boys in Victoria last year, while Olivia returned to the top of the girls' charts after dropping to second spot behind Mia the previous year.

Acting Premier Rob Hulls yesterday released the Victorian Registry of Births, Deaths and Marriages annual data on baby names.

Of the more than 70,000 babies born in Victoria last year, 549 were named William.

The next most popular name for boys was Jack (534), then Oliver (453), Joshua (443) and Thomas (441).

The only new entry into the top 20 list for boys was Xavier (254), which pushed Ryan (230) down to 22nd position.

In the girls' top 20 there were changes in the order but not the names. Olivia was the most popular name (431), followed by 2008's winner, Mia (418), then Chloe (402) and Ruby (397). Isabella (393) was the fifth most popular girls name, but there were also 171 Isabelles, 85 Isabels and 72 Bellas.

Mr Hulls said many parents appeared to have been influenced by celebrity chefs when choosing their baby's name: George Calombaris had 88 namesakes in Victoria is 2009, Stephanie Alexander 84 and Curtis Stone 21.

''Other parents opted for the names chosen by some celebrity couples for their newborn, such as Ava (350) after Hugh Jackman and Deborra-Lee Furness' daughter, or Matilda (292) after the late Heath Ledger's daughter with Michelle Williams,'' Mr Hulls said.

He nominated Chanel, Angel, Winter and Summer as some of the year's more unusual names.

Spelling is destined to cause problems for teachers in years to come: there were 149 Madisons and 142 Maddisons born in Victoria last year, and 84 Madeleines and 68 Madelines.

People wanting to know more about Victoria's favourite names dating back to 1929 should click on the ''Popular baby names'' link at www.bdm.vic.gov.au.