This chapter provides information and analysis on the English systemic approach to school leadership for school improvement. This refers to a practice in which schools work beyond their school borders for the benefit of the school system as a whole. England (UK) was selected by the OECD as an example of a systemic approach to school leadership because it has been promoting this vision through a number of policies and practices at national, regional and school level by stimulating school and school leadership collaboration so that “every school is a good school for every pupil”. In the past five years, the English have developed a number of different opportunities for schools and school leadership to collaborate for school improvement as a whole. Among the different approaches we can highlight the role of the National College for School Leadership (NCSL) in the development of school leaders who “think and act beyond the school”, such as the National Leaders of Education or school improvement partners, the role of an independent organisation which has promoted school networks called the Specialist Schools and Academies Trust (SSAT) and the possibility for schools to develop different degrees of collaboration or partnerships with other schools.