The Aspetuck Valley Trail is a 5.9-mile (9.5 km) Blue-Blazed hiking trail in the Aspetuck River Valley area of Fairfield County in the towns of Newtown, Easton and Redding Connecticut.

The trail follows the Aspetuck River through Centennial Watershed State Forest and Aspetuck Land Trust parcels. The Aspetuck Valley Trail is a mostly straight linear north to south trail. The northern end of the trail veers eastward to connect to the local trail system in the Collis P. Huntington State Park.

Notable features include the Poverty Hollow and Valley scenic roads, Aspetuck River, bogs, the dam on Hedmon's pond, modest high points and scenic overlooks as well as several stone fences.

The trail opened on June 2, 2007, after the 19th edition of the Connecticut Walk Book West had gone to press in 2006. The Aspetuck Valley Trail is maintained largely through the efforts of the Connecticut Forest and Park Association and the Nature Conservancy.

The Aspetuck Valley Trail is primarily used for hiking, backpacking, picnicking, and in the winter, snowshoeing.

Portions of the trail are suitable for, and are used for, cross-country skiing. Site-specific activities enjoyed along the route include hunting (very limited), fishing, horseback riding, bouldering and rock climbing (limited). There are signs at the trail heads forbidding mountain biking but they are periodically ignored. Evidence of horse riding and hunting can be found along the trail.

The trail is wooded except for the road walks along Stepney and Foundry roads. The southern section is mostly flat following the river and roads, the northern section is hilly and somewhat rocky.

The southern terminus of the Aspetuck Valley Trail is a small parking lot on Rock House Road in Easton, Connecticut not too far west of the intersection with Valley Road.