The objective of this paper is to examine the convergence of economic activity between the various NUTS 3 regions of the Iberian Peninsula over the period 2000-2019. An analysis of the GDP (PPS) per capita of Spanish and Portuguese provinces was conducted with the help of different usual statistical and econometric methods of σ, β and γ. This was done to confirm the existence or non-existence of economic convergence in the period under analysis. The results revealed the existence of economic convergence between the Portuguese and Spanish provinces. In addition, they showed that more than half of the territory analysed was characterised by a scenario of poverty.