The Professional Referee Group (Pro Ref), formally known as the Select Group is a panel of English professional football referees and assistant referees, appointed by Pro Ref. The group was first formed in 2001, when England became the first country to use fully professional referees in its top flight.

In June 2026 the PGMOL were rebranded to Professional Referee Group (Pro Ref), which merged Select Group 1, 2 & the Supplementary List

In summer 2023 and summer 2024, the PGMOL provided updates on the promotions of match officials.

There are 17 Women's Super League referees, 30 Women's Super League assistant referees, 24 Women's Championship referees, and 34 Women's Championship assistant referees, although some officials hold dual roles.

Among the various Select Group officiating panels, there are 16 referees, 19 assistant referees, and 10 video match officials on the 2025 FIFA International List, although some hold dual roles.

All officials, except for Cheryl Foster and Ceri Williams, are listed as English representatives—Foster and Williams are listed as Welsh representatives.

Some former and current Select Group officials have overseen major international final matches, including: 2 World Cup finals, an Olympic final, 2 European Championship finals, and 5 Champions League finals.

Assistant referee Phil Sharp was a part of the team for the 2002 FIFA World Cup final.