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We find the low lying quasinormal mode frequencies of the recently proposednovel four dimensional Gauss-Bonnet de Sitter black holes for scalar,electromagnetic and Dirac field perturbations using the third order WKBapproximation as well as Pad\'{e} approximation, as an improvement over WKB. Wefigure out the effect of the Gauss-Bonnet coupling $\alpha$ and thecosmological constant $\Lambda$ on the real and imaginary parts of the QNMfrequencies. We also study the greybody factors and eikonal limits in the abovebackground for all three different types of perturbations.

Quasinormal modes and greybody factors of the novel four dimensional  Gauss-Bonnet black holes in asymptotically de Sitter space time: Scalar,  Electromagnetic and Dirac perturbations