Ivy+Compino cubeA corner turning hexahedron. A hybrid model which combines an Ivy cube with 4 corners rotating like a Compino cube.
Jade CrossA Cross Cube (2x2x2) in the shape of a truncated triakis tetrahedron.
Jade SkewbA skewb in shape of a truncated triakis tetrahedron.
Jade ZA Super Z (Skewb+2x2x2) in the shape of a truncated triakis tetrahedron.
JennaminxA corner turning dodecahedron designed to be the True Redi Dodecahedron.
Jessen's 2x2x2A straightforward (?) shape variant. In this case the shape is Jessen's Orthogonal Icosahedron.
Jet 4x4x4The Fisher Axis Cube implemented with a 4x4x4.
Jewel TrapA corner turning tetragonal trapezohedron. A jumbling only puzzle.
Jewish CubeA derivative of Tricky Disky with six arms each with two pieces. In shape of a David Star.
Jewish Cube SplitA derivative of Tricky Disky with six arms each with four pieces. In shape of a Star of David.
Jugo ClockTwelve rotatable and flippable petals. Three of them are flipped at once.