Mohammed is now the number one name for newborn boys in the West Midlands.
It has risen from number two last year, according to figures published today by the Office for National Statistics on first names given to babies born in 2009. Nationally, it was placed 16th most popular.
After a 14-year reign, Jack has lost its stranglehold on the title of England and Wales' top name for newborn boys, replaced by Oliver.
Olivia was the most popular name for newborn girls for the second year in a row, according to the new figures.
There were 7,364 babies named Oliver in England and Wales in 2009. Olivia was chosen for 5,201 baby girls.
Jack remained a trendy name for boys, ranking second, while Harry came in third.
Ruby and Chloe were the second and third most popular names chosen for girls.
There were no new entries in the top ten for either boys' or girls' names compared with 2008, although there were regional variations with popularity of names.
Oliver was the most popular name for boys in six English regions, for example, but Jack was still the top name in Wales, and in the north east and north west of England.
Compared to names chosen for babies 10 years earlier, there was a resurgence in the popularity of names which were possibly once associated with people of the inter-war generation, or earlier.
Evie was the tenth most popular name given to baby girls in 2009, for example, moving up 157 places since 1999.
Ruby, the second most popular name for girls in 2009, was ranked 91 places lower 10 years ago.
Boys names such as Alfie and Charlie have followed a similar trend.
Six names in the boys top ten in 2009 were also there in 1999 - Jack, Joshua, Thomas, James, Daniel and William.
Five girls' names featured in both lists - Olivia, Chloe, Emily, Sophie and Jessica.
The name Lucas rose in popularity to climb 19 places since 2008, now ranked in 17th position, Archie climbed 11 places to 20th, while Noah jumped 13 places to 32nd.
For baby girls, Maisie is increasingly being chosen, climbing 29 places to be ranked 34th most popular name in 2009.
Unusual names making the top 100 for girls included Mya, in 100th position, and Lexi, which jumped 26 places to be ranked 47th.
Meanwhile, Emma dropped 10 places in popularity to become the 41st most common name given to girls.
Mothers of newborn and slightly older babies are urged by the ONS to include their babies' details in the 2011 Census, taking place next March.
"Babies often go unrecorded in the census as new mothers sometimes don't realise they need to enter the details of even the very newest member of the household," ONS spokesman William Mach said.
"There is a strong link between filling in the census and the authorities being able to plan and provide public services in years to come - for example, in setting numbers of school places."
There were 706,248 live births in England and Wales in 2009.
The West Midlands Top Ten:
Boys
Mohammed
Oliver
Jack
Alfie
Harry
Charlie
Joshua
Thomas
William
James
Girls
Olivia
Sophie
Chloe
Ruby
Jessica
Grace
Emily
Lily
Amelia
Evie
