The G1511 Rizhao–Lankao Expressway (Chinese: 日照—兰考高速公路), commonly referred to as the Rilan Expressway (Chinese: 日兰高速公路), is a 472.36-kilometre-long Chinese expressway (293.51 mi)[1] that connects the cities of Rizhao, in the province of Shandong, and Kaifeng, in the province of Henan.

The expressway is named after the two localities at its termini, Rizhao, to the east, and Lankao County, a county under the administration of Kaifeng, to the west.

Despite this namesake, the expressway's western terminus is actually in Xiangfu District, a neighbouring district in Kaifeng.

[2] The expressway is entirely in Shandong except for a small portion in Henan.

It connects the following prefectural-level cities: Note: italic indicates the routes that were available in 2013 network plan, but removed in 2022 network plan