Kiwaia pharetria is a moth in the Gelechiidae family. It was described by Meyrick in 1886. It is found in New Zealand. The wingspan is 13–17 mm. The forewings are whitish-ochreous, obscurely irrorated with brownish-ochreous, tending to form streaks on the veins, sometimes a more distinct apical streak and sometimes a few scattered black scales, also tending to accumulate on the veins. There are three small black discal spots, sometimes almost obsolete, the first before the middle, the second on the fold obliquely before the first and the third beyond the middle. The apical portion of the costa and hindmargin are obscurely dotted with black. The hindwings are whitish-grey.