Old and Lost Rivers is a short orchestral composition by the American composer Tobias Picker. The work was commissioned to commemorate the sesquicentenary of Texas by the Houston Symphony, for which Picker had recently been appointed composer-in-residence. The work was composed in the spring of 1986 and was given its world premiere by the Houston Symphony under the conductor Sergiu Comissiona in Jones Hall, Houston on May 9, 1986. Later that year, Picker adapted the work for solo piano as a birthday present for the pianist Ursula Oppens; this rendition of the work was premiered by Oppens at Carnegie Hall in March 1987. The piece is dedicated to Stephen M. Aechternacht and is one of Picker's most frequently performed compositions.