| O'Sullivan, Kevin | Informing & stimulating green lifestyle choices |
| Oberschelp, Christopher | Transitioning towards sustainable value chains for chemicals & materials (2) Presenter |
| Ohl-Gasteau, Violaine | Challenges & Methods for quantifying the benefits of recycling in LCM
Use of EPD in different legislations & policies Presenter |
| Ohms, Pernille K | Setting environmental sustainability targets in LCM |
| Oldfield, Thomas L | LCM applied to food , agriculture & beverages (1) |
| Olmos, Victoria | Contribution of LCM to more sustainable plastics value chains |
| Orefice, Martina | Towards meaningful sustainability assessment in circular economy : success & failures |
| Ortiou, Nicolas | Product design for sustainable LCM (2) |
| Orza, Vasco | Time and Space: Acknowledging and integrating the variability of sustainability impacts into LCM |
| Osset, Philippe | Valorization of LCA results in a LCM perspective (1) |
| Ostojic, Suzana | Product design for sustainable LCM (1) Presenter |
| Otte, Nikolaj | Developing the future life cycle network
Towards meaningful sustainability assessment in circular economy : success & failures
Transitioning towards sustainable value chains for chemicals & materials (1) |
| Ouellet, Jake | Transitioning towards sustainable value chains for chemicals & materials (2) |