After his sports retirement, he became an international ambassador for Airbus, a rugby consultant for Sky Sports, acquired half of the shares of Evangelina, a bar-restaurant in Toulouse, opened a consulting company specialised in French lifestyle and rugby and volunteered for a regional French NGO called "L'Ombre du Baobab" to help children in Sumba island.

[5][6] British newspaper The Independent called them "a raunchy Antipodean answer to Posh and Becks",[7] referring to the high-profile relationship of football player David Beckham and his wife ex-Spice Girl Victoria.

[10] The press suspected he was romantically involved with the Princess and New Zealand beer brand Tui jokingly created billboards referencing to the rumour.

On 11 September, he drove drunk, crashed his car into a Porsche , assault was involved with violence and got arrested by the French police.

After vandalising a door and verbally attacking a woman he was with, he was taken to a police station and placed in a drunk tank but was released after the women was examined by a doctor and nothing was wrong with her.

Kelleher was ultimately convicted over the matter in early March 2017 and received a fine, with the prosecutor stating that the "violence was not colossal, but strongly existed".

[16] Following his 2024 French court appearance, another former fiancée Yuliana Desta alleged five incidents of domestic violence perpetrated by Kelleher while they were in a relationship between 2018 and 2020.

In May 2019, Desta filed a report with Bali police after Kelleher allegedly punched her in the face and forehead after she discovered his affair with another woman.

In 2019, Desta filed a report with Barcelona police after Kelleher allegedly tried to suffocate her with a pillow and gave her two black eyes following an argument.

Desta also alleged that an intoxicated Kelleher strangled her following a combined birthday and engagement dinner in Auckland's Viaduct Harbour in late 2019.

[23] New Zealand Rugby also asked for an explanation when they learned The Haka Corner sold official Classic All Blacks clothing altered to include branding for the bar.