[en] Theoretical wavelengths and transition probabilities for the 3S--3P and 3S--4P transitions of Na-like ions are presented. The theoretical data are computed from relativistic Hartree-Fock wave functions. Similar data for additional transitions between low-lying states (n = 3 and 4) of the Fe¹⁵⁺, Mo³¹⁺, W⁶³⁺, and Au⁶⁸⁺ ions are also reported. Relativistic effects in the oscillator strengths for the resonance transitions are qualitatively similar to those already observed in the Li sequence. Comparison with available experimental data on wavelengths for Fe¹⁵⁺ and Mo³¹⁺ ions shows excellent agreement