The CO₂ solubilities (including CO₂ Henry’s constants) and viscosities in ionic liquids (ILs)/deep eutectic solvents (DESs)-based hybrid solvents were comprehensively collected and summarized. The literature survey results of CO₂ solubility illustrated that the addition of hybrid solvents to ILs/DESs can significantly enhance the CO₂ solubility, and some of the ILs-based hybrid solvents are super to DESs-based hybrid solvents. The best hybrid solvents of IL–H₂O, IL–organic, IL–amine, DES–H₂O, and DES–organic are [DMAPAH][Formate] (2.5:1) + H₂O (20 wt %) (4.61 mol/kg, 298 K, 0.1 MPa), [P₄₄₄₄][Pro] + PEG400 (70 wt %) (1.61 mol/kg, 333.15 K, 1.68 MPa), [DMAPAH][Formate] (2.0:1) + MEA (30 wt %) (6.24 mol/kg, 298 K, 0.1 MPa), [TEMA][Cl]-GLY-H₂O 1:2:0.11 (0.66 mol/kg, 298 K, 1.74 MPa), and [Ch][Cl]-MEA 1:2 + DBN 1:1 (5.11 mol/kg, 298 K, 0.1 MPa), respectively. All of these best candidates show higher CO₂ solubility than their used pure ILs or DESs, evidencing that IL/DES-based hybrid solvents are remarkable for CO₂ capture. For the summarized viscosity results, the presence of hybrid solvents in ILs and DESs can decrease their viscosities. The lowest viscosities acquired in this work for IL–H₂O, IL–amine, DES–H₂O, and DES–organic hybrid solvents are [DEA][Bu] + H₂O (98.78 mol%) (0.59 mPa·s, 343.15 K), [BMIM][BF₄] + DETA (94.9 mol%) (2.68 mPa·s, 333.15 K), [L-Arg]-GLY 1:6 + H₂O (60 wt %) (2.7 mPa·s, 353.15 K), and [MTPP][Br]-LEV-Ac 1:3:0.03 (16.16 mPa·s, 333.15 K) at 0.1 MPa, respectively.