Context :

Aims : The aim of this work was to search for double mode pulsators among RR Lyr variables of globular cluster \omega Cen .

Methods : We conducted a systematic frequency analysis of CASE photometry of \omega Cen RR Lyr stars .
We searched for periodicities using Fourier and ANOVA periodograms , combined with consecutive prewhitening technique .

Results : We discovered six double mode pulsators , with the first overtone and a secondary mode of higher frequency simultaneously excited .
These are the first double mode RR Lyr stars identified in \omega Cen .
In variable V10 period ratio of the two modes is 0.80 , which corresponds to pulsations in the first and second radial overtones .
In V19 and V105 we found unexpected period ratio of 0.61 .
Three other stars display period ratios of either \sim 0.80 or \sim 0.61 , depending on the choice of aliases .

Conclusions : While the period ratio of \sim 0.80 is easy to interpret in terms of two lowest radial overtones , the value of \sim 0.61 can not be explained by any two radial modes .
Thus , V19 and V105 are the first members of a new class of double mode RR Lyr pulsators .