An electrostatic capacitance transducer (2020, 2120) includes: multiple elements (201) each having a cell (1) including a first electrode (5), and a vibrating film including a second electrode (4), formed across a gap from the first electrode (5) a first flexible printed circuit (102) having multiple first lines (212) and a second flexible printed circuit (103) having multiple second lines (224). A part of the multiple elements (201) are grouped into a first element group, each one of the elements (201) of the first element group being electrically connected to a different one of the first lines (212). A part of the multiple elements (201) other than the first element group are grouped into a second element group, each one of the elements (201) of the second element group being electrically connected to a different one of the second lines (224). The intervals between adjacent lines in at least part of the multiple first lines (212) and second lines (224) are wider at an opposite side from a connection side where the lines have been connected to the multiple elements (201), than at the connection side.
