Wartislaw I of Świecie[a] (after 1195 – 1227/1233) was a duke from the Samboride dynasty.

From 1227 until his death between 1227 and 1233, he was a duke of the Duchy of Świecie and Lubiszewo.

After the death of his father in 1219 or 1220, he had become the steward of Świecie and Lubiszewo lands in the Duchy of Pomerelia, under the rule of Leszek the White.

In 1227, after the gaining of the independence of Pomerelia from the Kingdom of Poland, he was made a duke of the Duchy of Świecie and Lubiszewo by his brother, Swietopelk II, the duke of the Duchy of Gdańsk.

Following his death, his state was divided between Swietopelk II, who got the area of Świecie, Sambor II, who got the Duchy of Lubiszewo, and Racibor of Białogarda, who got Duchy of Białogarda.