The award aims to raise awareness of the support PFA members provide to their club's community initiatives throughout the season.
Fahey was recognised for attending multiple events over the course of the season, notably appearing alongside manager Vicky Jepson at a local girls high school to provide a training session for budding footballers and assisting GCSE students with their coursework.
On receiving the award, Ireland international Fahey said: “I’m delighted to accept this award for PFA Community Champion on behalf of the team. I’m very honoured and I’m looking forward to continuing the work again next year.”
Jepson added: “Niamh is a fantastic role model to many young people in our community and has attended many events this season, sharing her football journey to inspire the next generation.
“Due to Niamh being such a fun character, young people look up to her and find it easy to engage with Niamh at the sessions and events she has attended.”
Liverpool FC Women play their final game of the 2018-19 season against Everton Ladies at Prenton Park on Saturday, May 11.
Tickets are available now from £2.50.