New HampshireBusinessesNear Me

🏋️ Official Rankings

10 Best Gyms in Merrimack, NH (June 2026)

The highest-rated gyms in Merrimack based on verified reviews, ratings, and local reputation.

#1

Fuel Personal Training

Featured

5.0 · 102 reviews

25 S River Rd Ste 111, Bedford, NH 03110

#2

Valid Fitness

5.0 · 135 reviews

290 Derry Rd, Hudson, NH 03051

#3

IMPACT-X Performance

5.0 · 90 reviews

150 Nashua Rd, Londonderry, NH 03053

#4

ELITE Rehab & Sports Therapy

4.9 · 78 reviews

421 Daniel Webster Hwy, Merrimack, NH 03054

#5

Merrimack FITLAB

4.8 · 305 reviews

515 Daniel Webster Hwy, Merrimack, NH 03054

#6

CrossFit Earned

4.9 · 47 reviews

26 Columbia Cir B, Merrimack, NH 03054

#7

Your Goal Fitness

5.0 · 26 reviews

557 Daniel Webster Hwy Unit 3, Merrimack, NH 03054

#8

Planet Fitness

4.7 · 259 reviews

360 Daniel Webster Hwy Ste103, Merrimack, NH 03054

#9

Do Better.

5.0 · 18 reviews

290 Derry Rd, Hudson, NH 03051

#10

Effective Fitness

5.0 · 17 reviews

123 Nashua Rd #17, Londonderry, NH 03053