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High‐speed photometric observations of the spectroscopically discovered PG 1159 star SDSS J034917.41−005917.9 in 2007 and 2009 reveal a suite of pulsation frequencies in the range of 1038–3323  μHz with amplitudes between 3.5 and 18.6 mmag. SDSS J034917.41−005917.9 is therefore a member of the GW Vir class of pulsating pre‐white dwarfs. We have identified 10 independent pulsation frequencies that can be fitted by an asymptotic model with a constant period spacing of 23.61 ± 0.21 s, presumably associated with a sequence of ℓ = 1 modes. The highest amplitude peak in the suite of frequencies shows evidence for a triplet structure, with a frequency separation of 14.4  μHz. Five of the identified frequencies do not fit the ℓ = 1 sequence, but are, however, well modelled by an independent asymptotic sequence with a constant period spacing of 11.66 ± 0.13 s. It is unclear to which ℓ mode these frequencies belong.

SDSS J0349−0059 is a GW Virginis star