Ronald Frank Aldrich (15 February 1916 – 30 September 1993) was a British easy listening and jazz pianist, arranger, conductor and composer.

He travelled to India in the late 30s ahead of World War Two to play jazz and first gained fame in the 1940s as the leader of a Royal Air Force band called The Squadronaires who had a twenty-year-long career before they disbanded in 1964.

In later years he moved to the Isle of Man where he lived with his wife in Strathallan Castle, formerly the Clifton Hotel, in Port St. Mary, but he continued to work in London, where he remained a member of the local Branch of the Musicians Union.

Ronnie Aldrich and the Squadcats Decca Discography "Ronnie Aldrich And His Two Pianos" (PFS is the Decca (UK) original catalogue number; SP is the London label (USA) version) / (*) Also issued as "Romantic Screen Themes" in Japan (London SLC4484) / (**) Togetherness (UK double-disc set) was issued as two separate albums in the USA Decca (Polygram) Discography (One Piano) Amberjack Discography (One Piano) Seaward Music recordings licensed to EMI (One Piano) Seaward also issued a vinyl LP, The Wonderful World of Man, which contained recordings of the sounds of the Isle of Man, where Ronnie Aldrich lived from the 1960s onwards.

Melodies from The Classics (1978) Emotions (1978) Tomorrow's Yesterdays (1979) For The One You Love (1980) One Fine Day (1981) Silver Bells / Winter Wonderland (1981) Imagine (1981) Night Birds (1982) Sea Dreams (1984) For All Seasons (1987)