Intraseasonal oscillations in atmospheric angular momentum at various latitudes from 1979 to 1989 are analyzed and compared with fluctuations in tropical convective activity associated with the Madden-Julian oscillation. Oscillations with periods of approximately 40 and 50 days are observed in both the globally integrated angular momentum M and tropical convective activity. M is maximum when the convective activity increases over the western/central Pacific and weakens over the Indian Ocean. Cross-spectral analyses show that the main contributions to both 40- and 50-day oscillations in M and in length-of-day (LOD) come from the tropics where fluctuations in regional atmospheric angular momentum with the same periodicities exist. In general, the signal of the oscillations propagates from the tropics to the subtropics. In the northern hemisphere (NH) mid-latitudes, however, a small-amplitude 40-day oscillation in atmospheric angular momentum usually exists regardless of the presence or absence of fluctuations with the same periodicity in the tropics. In the southern hemisphere (SH) a dominant 50-day oscillation exists independently from those in the tropics. However, the 40- and 50-day oscillations in the NH and SH do not seem to drive oscillations with the same periodicity in LOD or M. ¿ American Geophysical Union 1993