Some embodiments include methods of forming integrated assemblies. First conductive structures are formed within an insulative support material and are spaced along a first pitch. Upper regions of the first conductive structures are removed to form first openings extending through the insulative support material and over lower regions of the first conductive structures. Outer lateral peripheries of the first openings are lined with spacer material. The spacer material is configured as tubes having second openings extending therethrough to the lower regions of the first conductive structures. Conductive interconnects are formed within the tubes. Second conductive structures are formed over the spacer material and the conductive interconnects. The second conductive structures are spaced along a second pitch, with the second pitch being less than the first pitch. Some embodiments include integrated assemblies.