Biflatness and Pseudo-Amenability of Segal Algebras We investigate generalized amenability and biflatness properties of various (operator) Segal algebras in both the group algebra, $L^1(G)$, and the Fourier algebra, $A(G)$, of a locally compact group~$G$. Keywords:Segal algebra, pseudo-amenable Banach algebra, biflat Banach algebraCategories:43A20, 43A30, 46H25, 46H10, 46H20, 46L07