* Gemma Styles (syster)
Liam Payne:
* Ruth Gibbins (syster)
* Nicola Payne (syster)
Louis Tomlinson:
* Lottie Tomlinson (syster)
* Félicité Tomlinson (syster, död)
* Phoebe Tomlinson (syster)
* Daisy Tomlinson (syster)
Niall Horan:
* Greg Horan (bror)
Zayn Malik:
* Doniya Malik (syster)
* Waliyha Malik (syster)
* Safaa Malik (syster)