Yes, Chopin wrote orchestra pieces, most of Chopin's compositions were for solo piano. Chopin also wrote for piano concertos and orchestras. Most of his works include: waltzes, mazurkas, polonaises, études, impromptus, nocturnes, scherzos, sonatas and many others.
Chopin's most popular compositions are Sonatas and nocturnes. Chopin is mostly known for his solo piano compositions. Some of his musical piece are now played on other musical instruments like the violin.