Authors are listed in alphabetical order. This dataset contains the Scientific Knowledge Graph of the Maritime Transport pilot, one of the domain pilots of the SciLake project. The graph is constructed based on the OpenAIRE SKG-IF representation, providing core entity nodes for Agents, Data sources, Grants, Products, Manifestations, Topics, and Venues. Fields of Science (FoS) and Sustainable Development Goals (SDGs), represented as Topic entities, as well as Research Artifacts and Citances, are computed by SciNoBo and provided under a CC‑BY‑NC license. Technology entities and their links to research products are provided by OPIX. Maritime-specific entities, such Vessel Types and related Regulations, are linked to research products through in-text mention relationships, produced by SIRIS. The complete graph construction pipeline is described in detail in Section 4.5.1 of the SciLake Deliverable 3.2.