In this paper the problem of the multiaxial fatigue limit estimation of sharply notched components has been addressed using two different methods: a critical distance method and a method involving modified Wöhler curves. These two methods had been previously developed by the authors, but required modification for use in conjunction with finite element stress analysis of sharply-notched specimens subjected to multiaxial loadings. Initially, it was demonstrated mathematically that these methods are equivalent in terms of multiaxial stresses near the notch tip. Subsequently, by employing some well-known uniaxial notch fatigue concepts, some assumptions have been made in order to extend the use of these methods to in-phase multiaxial notch fatigue situations. Experimental data was obtained from tests conducted on V-notched specimens subjected to in-phase mixed MODE I and MODE II loadings. Both methods were successful, giving fatigue limit predictions with an error usually less than 15%. This is interesting because the two methods make quite different assumptions about the nature of fatigue crack growth in the vicinity of the notch.