Place the chicken thighs in the bottom of the crockpot.
Add the diced onion, minced garlic, grated ginger, red curry paste, coconut milk, salt, and black pepper.
Stir everything together until the curry paste is evenly mixed into the coconut milk.
Cover and cook on low for 6 to 7 hours until the chicken is very tender.
Shred the chicken with two forks right in the crockpot or leave the pieces whole.
Stir in the lime juice, then serve over cooked white rice and top with chopped cilantro.