Khloe Kardashian has ‘named her son Tatum Robert’… 10 months after he was born

Khloe Kardashian has kept the name of her second child, a son born via surrogate with ex Tristan Thompson, 32, a secret.

But now the American edition of The Sun has claimed they know the name.

The site has shared that it concerns Tatum Robert.

Khloe, 38 – who was working out on Wednesday – has said in the past that she wanted a first name that started with a T to suit her daughter True, five years old.

So Tatum is in line with that and the boy’s last name will probably be Thompson, not Kardashian.

Robert is the name of both Khloe’s younger brother Rob, 36, and her late father, lawyer Robert Kardashian, who died in 2003.

Name please! Khloe Kardashian has kept the name of her second child, a son born via surrogate with ex Tristan Thompson, a secret

Baby boy: But now the US edition of The Sun has claimed that they know the nickname.  The site has shared that it concerns Tatum Robert

Baby boy: But now the US edition of The Sun has claimed that they know the nickname. The site has shared that it concerns Tatum Robert

Firstborn: Khloe, 38, has said in the past that she wanted a first name that started with a T to match her daughter True, five years old

Firstborn: Khloe, 38, has said in the past that she wanted a first name that started with a T to match her daughter True, five years old

DailyMail.com has reached out to Khloe’s rep for comment.

The insider said, “There was talk of whether it should be Tatum Robert or Robert Tatum.

“Some in the family leaned more towards Robert, because it honors her father and her brother.

The source added that Khloe didn’t decide on the name right away.

It took Khloe a while to decide on the name, but in the end she chose Tatum Robert, which matches Tristan and True’s names that start with a T.

“Khloe wanted a name that was kind of unusual but not too flashy and that also fit the T theme,” it added.

Tristan also has sons Theo, 16 months, with Maralee Nichols, and Prince, six, with model ex-girlfriend Jordan Craig.

Khloe hasn’t shared too many photos of her son since arriving almost a year ago.

Already a TV star: Khloe hasn't shown too many photos of her baby boy since arriving almost a year ago.  However, she has revealed the back of his head on her family's reality TV show, The Kardashians

Already a TV star: Khloe hasn’t shown too many photos of her baby boy since arriving almost a year ago. However, she has revealed the back of his head on her family’s reality TV show, The Kardashians

Not quite a family unit: Khloe, who is separated from Tristan, watched as he held their son

Not quite a family unit: Khloe, who is separated from Tristan, watched as he held their son

Baby Tatum?  And last month, Khloe shared a look at his back as he sat on the floor of her home gym while she had a morning workout

Baby Tatum? And last month, Khloe shared a look at his back as he sat on the floor of her home gym while she had a morning workout

However, she has revealed the back of his head on her family’s reality TV show, The Kardashians.

And last month, Khloe shared a look at his back as he sat on the floor of her home gym while she had a morning workout.

This comes after Khloe said she gets it “so emotional” when she thinks about how quickly time passes with her children.

The Good American designer took to social media the day after her oldest turned five in April to explain that she had been “praying” to have the little one for years.

Baby boy in grey: In this image from The Kardashians, Kourtney is seen holding Khloe's son while momager Kris Jenner beams with pride

Baby boy in grey: In this image from The Kardashians, Kourtney is seen holding Khloe’s son while momager Kris Jenner beams with pride

She wrote on Instagram, “True, you must have heard me from heaven because I have been praying for you for years. I must have done something right because I am blessed with one of the most gentle, empathetic, loving, happy, grateful and silly little girls. I’ve dreamed of my daughter for as long as I can remember, but my dreams weren’t even close to the reality God blessed me with.

“Now that my sweet baby is 5, I get so emotional thinking about how fast time goes by. At the same time, I am so honored and grateful for every minute. I cherish every moment and every memory I have with you.

The Kardashians star added that she is “excited” to see what the next year has in store for her daughter and thanked the little one for “choosing” her as her mother, stating that her children are her “entire be life. ‘

She added, “My sweet, innocent, lucky girl, you are my everything. As sad as I am that you are getting older, I am also excited to see what year five has in store. Thank you for choosing me to be your mama. You and your brother are my heartbeat and my happiness. You are my whole life!

“Mommy and Baby love you TuTu PS I know it was her birthday yesterday but I was too busy being in the moment with my birthday.”