Johan Joachim Agrell (1 February 1701 – 19 January 1765) was a late German/Swedish baroque composer.
He was born in Löth parish, Memming district, Östergötland, a province in Sweden, and studied in Uppsala.
By 1734 he was a violinist at the Kassel court, travelling in England, France, Italy, and elsewhere.
He wrote occasional vocal works and numerous symphonies, harpsichord concertos and sonatas, many of which were published.
He was a fluent composer in the north German galant style of the time, and also an appreciated musician and conductor.