Whitchurch & Tongwynlais (Welsh: Yr Eglwys Newydd a Thongwynlais) is an electoral ward of Cardiff, Wales. It covers some or all of the following areas: Coryton, Tongwynlais and Whitchurch in the parliamentary constituency of Cardiff North. It is bounded by Caerphilly county borough to the north; Rhiwbina and Heath to the east; Llandaff North to the south; and Radyr and Pentyrch to the west.