Khloe Kardashian has officially changed her son Tatum's name

It comes just over a year after his birth... and bring on all of the fan theories about her change of heart.

Image: IStock

Khloe Kardashian officially changed her son Tatum's name this week. 

The reality TV star, 39, who shares two children with ex-boyfriend Tristan Thompson, legally changed her son's name to 'Tatum Thompson'.

Tatum's last name was previously 'Kardashian', so this decision could suggest that the on-again-off-again couple are back on.

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Khloe Kardashian and her son Tatum Thomas. Image: Instagram

RELATED: Khloe Kardashian confirms baby son’s name

Tatum's name has been changed over a year after he was born

According to People, the high-profile parents legally changed Tatum's last name this week. 

The publication reports that on Thursday, a judge in Los Angeles approved the name change, over a year after Tatum was born.

The 13-month-old, who was welcomed via surrogate in July 2022, was previously named 'Baby Kardashian' on his birth certificate, as Khloe and Tristan were yet to decide on a name. 

The law in California allows parents to give their child their paternal or maternal last name, or a combination of the two. The final decision will be permanent unless the court intervenes. 

Khloe Kardashian and her two kids, True and Tatum. Image: Instagram

RELATED: Khloe and Tristan expecting second child together

Why wasn't Tatum given Tristan's last name at birth?

It's safe to presume that Tristan and Khloe's relationship would have been on the rocks at the time their son was born, given what we know about Tristan's infidelity around that time. 

It's been well-reported that the basketball player got another woman, Maralee Nichols, pregnant after he and Khloe had just decided to have another baby via surrogate. 

Khloe Kardashian and Tristan Thompson. Images: Instagram

So it seems pretty clear why Khloe decided to leave his name off the birth certificate - he was not in the good books.

But over a year later, it seems she's had a change of heart in regards to her decision. 

We can only assume that things have gotten much better between the pair since then, so much so that she wants her son to take Tristan's last name. 

The duo have been co-parenting their two children, True, five, and Tatum this whole time and might inevitably have gotten closer, given the number of milestones their youngest is likely going through.

We'll have to wait and see what happens. 👀

Originally published as Khloe Kardashian has officially changed her son Tatum's name