Examination of historical simulations from CMIP6 models shows substantial pre‐industrial to present‐day changes in ocean heat (ΔH), salinity (ΔS), oxygen (ΔO2), dissolved inorganic carbon (ΔDIC), chlorofluorocarbon‐12 (ΔCFC12), and sulfur hexafluoride (ΔSF6). The spatial structure of the changes and the consistency among models differ among tracers: ΔDIC, ΔCFC12, and ΔSF6 all are largest near the surface, are positive throughout the thermocline with weak changes below, and there is good agreement among the models. In contrast, the largest ΔH, ΔS, and ΔO2 are not necessarily at the surface, their sign varies within the thermocline, and there are large differences among models. These differences between the two groups of tracers are linked to climate‐driven changes in the ocean transport, with this tracer "redistribution" playing a significant role in changes in ΔH, ΔS, and ΔO2 but not the other tracers. The spatial structure, and differences between models, of changes in age tracers are consistent with ΔH, ΔS, and ΔO2, supporting the hypothesis that redistribution plays a major role for these tracers. Further, the impact of the vertical displacement of isopycnals (heave) plays a major role in the differing impact of redistribution between the two groups, with this process causing insignificant changes to ΔDIC, ΔCFC12, and ΔSF6 due to their weak spatial gradients. A similar multi‐tracer analysis of observations could provide insights into the relative role of the addition and redistribution of tracers in the ocean. Plain Language Summary: Changes in ocean properties can have a large impact on Earth's climate (e.g., ocean storage of heat and carbon) and biology within the oceans (e.g., acidification and deoxygenation). Here we examine historical changes in multiple ocean fields from an ensemble of climate model simulations. The spatial structure of the changes and the consistency among models differs between tracers. Dissolved inorganic carbon (DIC), chlorofluorocarbon‐12 (CFC12), and sulfur hexafluoride (SF6) all have largest increases near the surface, increase throughout the thermocline with weak changes below, and there is good agreement among the models. However, for ocean heat (H), salinity (S), oxygen (O2) the largest changes are not necessarily at the surface, the sign of the change varies among tracers, and there are large differences among models. These differences between the two groups of tracers are linked to climate‐driven changes in the ocean transport, with this tracer "redistribution" playing a significant role in changes in H, S, and O2 but not the other tracers. A similar multi‐tracer analysis of observations could provide insights into the relative role of the addition and redistribution of tracers in the ocean. Key Points: Historical changes in DIC, CFC12, and SF6 in CMIP6 simulations show similar spatial patterns and general agreement among the modelsHistorical changes in H, S, and O2 show regional differences, including in sign, among tracers and a wide variation among the modelsIncreases in surface values dominate changes in DIC, CFC12, and SF6, but changes in ocean transport are more crucial for H, S, and O2 [ABSTRACT FROM AUTHOR]