This blogfest is kindly hosted by the lovely Madeleine.
I'm not sure that all of the listed below have been made into both movies and TV series, but most have. The selection itself is a small proportion of novels that I've read and have been made into movies. But, they are novels that made a profound impact upon me, one way and another, and when made into movies they didn't always reach my expectations. The exceptions being GWTW, TTB, LOTM, the WWII movies and the swashbucklers.
War & Peace - Leo Tolstoy
Dr Zhivago - Boris Pasternak
Gone with the Wind - Margaret Mitchell
The Thorn Birds - Colleen McCullough
The count of Monte Cristo - Alexandre Dumas
The Three Musketeers - Alexandre Dumas
The Man in the Iron Mask - Alexandre Dumas
Frenchman's Creek - Daphne du Maurier
Wicked Lady - Magdalen King-Hall
Lorna Doone - R. D. Blackmore
Robinson Crusoe - Daniel Defoe
Treasure Island - Robert Louise Stevenson
Last of the Mohicans - James Fenimore Cooper
A Town Like Alice - Nevil Shute
The Cruel Sea - Nevil Shute
Waterloo Bridge (based on play) Robert E. Sherwood.
Bridge over the River Quai - Pierre Boulle
Post War novels:
James Bond (007) - Ian Fleming
Collection of John Le Carre novels made into films.
National Velvet - Enid Bagnold
Black Beauty - Anna Sewell
Swallows & Amazons - Arthur Ransome
Classics: Greek/Roman/Austen/Brontes'/Dickens/Shakespeare etc. Not to mention the longest running play held in the West End "The Mousetrap" adapted from a short story by Agatha Christie. And, of course her famous crime novels made into movies and TV series.
To see entries by other participants go here.