Purpose: The United Nations Educational, Scientific and Cultural Organization's (UNESCO) Recommendation on Open Educational Resources (OER) was a milestone when it was uniformly adopted by its member states on November 25, 2019. The purpose of this conceptual paper is to provide an overview of the OER Recommendation in relation to some of the UN Sustainable Development Goals (SDGs). The paper focuses on SDG 4 on education, but also on other SDGs that are directly linked to the relevant SDGs for the overall implementation of the UNESCO OER Recommendation. These SDGs are: SDG 5 (gender equality), SDG 9 (industry, innovation and infrastructure), SDG 10 (reduce inequalities within and between countries), SDG 16 (peace, justice and strong institutions), and SDG 17 (partnerships for the goals). All five areas of the OER recommendation are closely linked to the above SDGs. This paper also discusses how to advocate with stakeholders at all levels to implement and mainstream OER and the SDGs across all areas of the OER recommendation. In addition, this concept paper discusses accessibility for all (e.g. any type of impairment/disability, etc.) and addresses quality issues at OER and their implications. Design/methodology/approach: This conceptual paper provides an overview of the UNESCO OER Recommendation and its relationship to some of the SDGs. The paper also addresses the role of stakeholders in implementing the OER Recommendation and the potential problems of its accessibility and quality. This paper has been designed as a literature review including mainly official reports from the organizations in the field, such as the UN UNESCO SDGs (UN, n.d; UNESCO, 2016) and the UNESCO OER Recommendation (UNESCO, 2019, 2021a). This conceptual paper is discursive in nature. It contains a discussion based on a literature review comparative studies, experiences, works, and reflections of the author, who has been working in this field since its beginnings in 2002. This contribution is also based on the experiences, works, and reflections of other authors on the OER movement. Findings: The UNESCO OER Recommendation (UNESCO, 2019) clarifies that all five areas of the OER Recommendation for implementation are closely linked to the SDGs (UN, n.d; UNESCO, 2016), particularly SDG4, which targets to achieve education for all by 2030, and other SDGs, such as SDG5 (gender equality), SDG9 (industry, innovation, and infrastructure), SDG10 (reducing inequalities within and between countries), SDG16 (peace, justice, and strong institutions), and SDG17 (partnerships for the goals). Since OER does not consist of a single goal but is linked to universal values, such as the common good, human rights (United Nations, 1948), equality, ethics, and social justice, this concept paper discusses how they are interconnected and how both the SDGs and the five domains of the UNESCO OER Recommendation (UNESCO, 2019) can be achieved. To date, however, there have been few studies on how they are interconnected. This paper proposes a model that highlights their relationships as two sides of the same coin, as they are interconnected and influence, facilitate, and reinforce each other. Research limitations/implications: The study presented in this concept paper may have limitations as it is mainly based on a review of the official relevant literature by UNESCO and OECD. A large-scale study relying on more comprehensive methods, such as focus groups, grounded theory, or even other qualitative and quantitative methods, could have validated the findings. However, since this is a first attempt, and there are few, if any studies in this area, it was decided to conduct the study in the form of a literature review and with a personal approach based on more than 20 years of research, experience, and consultation in the area of open education, OER, human rights (United Nations, 1948), social justice, ethics, and the common good. Practical implications: The practical impact of the findings of this conceptual paper is that by breaking down the broad SDG goals to a practical level, it shows how the SDGs can be part of daily life and seamless daily education and learning throughout the lifespan of the learners. Social implications: The higher values of the SDGs relate to human rights United Nations (1948), social justice, and equity. Several of the SDGs, including SDG 4 and others addressed in the UNESCO OER Recommendation, such as the following: SDG5 (gender equality), SDG9 (industry, innovation, and infrastructure), SDG10 (reduce inequalities within and between countries), SDG16 (peace, justice, and strong institutions), and SDG17 (partnerships for the goals) can be achieved through open education (Inamorato Dos Santos et al., 2016). Achieving these SDGs and implementing the OER Recommendation will benefit both individuals and the planet. Education for all will also help solve climate problems. Originality/value: The OER Recommendation (UNESCO, 2019) clarifies that all five areas of its implementation are closely linked to the SDGs, particularly SDG4, which targets education for all by 2030 (OECD, 2009; UNESCO, 2016), as well as SDG5 (gender equality), SDG9 (industry, innovation, and infrastructure), SDG10 (reducing inequalities within and between countries), SDG16 (peace, justice, and strong institutions), and SDG17 (partnerships for the goals). Since OER is not a stand-alone goal but is related to overarching values, such as human rights (United Nations (1948), equity, and social justice, this conceptual paper explores how these are interconnected and how both the SDGs and the five goals can be achieved. The proposed model is new and clearly needed in research on this topic.