Ruth K Removes Mulamwah’s Surname From Son’s Name Amidst Escalating Feud

In the latest development of their increasingly public and acrimonious separation, digital content creator Ruth K has officially removed her ex-partner Mulamwah’s surname from their son’s name, replacing it with her own. This significant change was unveiled alongside the launch of a dedicated Instagram account for their child, signaling a decisive shift from the previous account, which was once managed jointly by the former couple.

Comedian Mulamwah himself publicly acknowledged the name change on his son’s newly created page, confirming that their child’s full name is now Calvin Karegi Wanjiku. This reflects Ruth K’s family name, replacing Oyando, Mulamwah’s surname. Mulamwah’s concise caption, “Mr. Calvin Karegi Wanjiku,” appeared on Instagram stories shortly after Ruth K announced the child’s fresh online presence.

The move has quickly garnered attention from fans and critics, who were swift to point out that under Kenyan law, altering a child’s surname typically requires a formal application through the Children’s Act, provided there’s no objection from the other parent or a court order. It remains unclear whether Ruth K has initiated any formal legal proceedings to effect this change, or if the alteration is currently confined to social media profiles and informal documentation.

Despite public apologies exchanged between Mulamwah and Ruth K—from Mulamwah to Ruth, and from Ruth to her fans—their highly publicized online feud shows no signs of abating. For now, their child’s new surname is a powerful symbol of Ruth K’s assertion of parental autonomy, a stance she has been increasingly vocal about since parting ways with the comedian.

Ruth K and Mulamwah’s relationship, which began nearly four years ago, was once frequently showcased on social media, portraying what appeared to be a picture-perfect partnership. The two met in Eldoret, starting as friends before their relationship turned romantic, culminating in the birth of their son in February 2024. Their seemingly solid union fractured in April 2025 when Mulamwah publicly announced their split on social media. This initial announcement was met with skepticism by some fans, who speculated it was a publicity stunt for the comedian’s upcoming show on April 20, 2025.

However, any notions of a discreet separation evaporated in mid-June, as the content creator and comedian transformed their fallout into one of the most viral celebrity feuds in recent memory. Their bitter dispute has played out extensively across Instagram and Facebook, drawing in thousands of onlookers as intimate grievances were shockingly thrust into the public domain.

The public spat included Mulamwah accusing Ruth K of disrespecting his parents and changing after gaining fame, while Ruth countered with explosive claims that Mulamwah sent her private videos to her father, severely straining her family relationship. The situation further deteriorated with both parties exposing highly explicit content, culminating in a bizarre moment when Mulamwah publicly demanded Ruth K return his “teeth,” which he allegedly paid for, sparking widespread memes and public mockery.