Karl Friedrich Peter Eggers (7 June 1826 – 18 July 1900) was a German lyric poet.
In 1861, he moved to Berlin, where he cultivated connections with writers and artists, such as Emanuel Geibel, Paul Heyse, Adolf Wilbrandt, Otto Roquette, and Theodor Fontane.
Perhaps his most important connection was with Heinrich Seidel, who introduced him to the editors at Verlag Cotta, a publishing house in Stuttgart.
After his brother's death, he completed a five volume biography of the sculptor Christian Daniel Rauch that Friedrich had been working on for several years.
Although technically retired, he was active in the Rostock Kunstverein (art association), the Altertumsverein (antiquities club) and the local Low German Society.