Hydrogen (H2) is emerging as a key player in the transition to a net-zero emission economy by 2050 due to its potential as a clean energy carrier. Conventional methods of H2 production often rely on fossil fuels, leading to substantial greenhouse gas emissions. To address this issue, innovative thermal approaches for H2 production are being explored. These approaches, categorized under sustainable feedstock, process electrification, and in situ carbon removal, aim to enhance energy efficiency while minimizing environmental impact. Examples of novel thermal approaches at low technology readiness levels include techniques like the dry reforming of methane using conventional or unconventional heat supply methods, thermal and catalytic pyrolysis of methane with or without advanced membrane integration, metal reactions, and the valorization of plastic waste for H2 production. Additionally, the concept of H2 production through chemical looping, which falls under an intermediate technology readiness level, is being investigated for its potential to improve energy efficiency, financial viability, and environmental sustainability. As the world seeks to reduce its carbon footprint and transition towards a low-carbon energy system, the exploration and development of efficient and sustainable H2 generation methods are crucial. These novel thermal approaches not only offer promising solutions to the challenges posed by conventional H2 production but also pave the way for a more sustainable and environmentally friendly future.