The workshop on Operator Theory and Boundary Eigenvalue Problems was held at the Technichal University, Vienna, Austria, July 27th-30th, 1993. It was the seventh workshop in the series of IWOTA (International Workshops on Operator Theory and Applications). The main topics at the workshop were interpolation problems and analytic matrix functions, operator theory in spaces with indefinite scalar products, boundary value problems for differential and functional-differential equations and systems theory and control. The workshop covered different aspects, starting with abstract operator theory up to concrete applications. The papers in these proceedings offer a cross-section of the lectures presented at the workshop.