Gyms in Belfast

4 gyms in Belfast are listed here, each checked against its own website.

2 offer 24/7 access.

2 advertise a weekly price, from $9.99 to $25.

Most common types: gym (3), boxing & martial arts (1), pilates studio (1).

Facilities mentioned most: group classes (2), cardio (1), parking (1).

Flex Fitness Belfast

Checked 29 Sep 2026

Gym · Belfast

Flex Fitness Belfast is a 24/7 gym offering industry-leading equipment and a sauna for recovery.

  • Sauna
  • Group classes
  • Parking
  • 24/7

From $25/wk

View details and sources