Merry del Val is a Spanish surname and may refer to:
People Alfonso Merry del Val (1864–1943), Spanish diplomat, son of Rafael Carlos Merry del Val and father of Alfonso Merry del Val y Alzola Alfonso Merry del Val y Alzola (1903–1975), Spanish diplomat, son of Alfonso Merry del Val Rafael Merry del Val (1865–1930), Spanish Catholic bishop, Vatican official, and cardinal, son of Rafael Carlos Merry del Val Rafael Carlos Merry del Val (1831–1917), Spanish nobleman and diplomat, father of Alfonso Merry del Val
Peerage Marquess of Merry del Val, a hereditary title in the Peerage of Spain
See also Del Val, Spanish surname